From 47c719eb55528dd309c5f14ce46ab1ac3c71e8fa Mon Sep 17 00:00:00 2001
From: Markus Tavenrath <matavenrath@nvidia.com>
Date: Mon, 9 Mar 2026 16:30:20 +0100
Subject: [PATCH 01/10] Update PyWebNN to new RustNN OperatorOptions API

---
 src/python/graph.rs         |   2 +-
 src/python/graph_builder.rs | 422 ++++++++++++++++++++----------------
 2 files changed, 232 insertions(+), 192 deletions(-)

diff --git a/src/python/graph.rs b/src/python/graph.rs
index f58dab5..b4b4743 100644
--- a/src/python/graph.rs
+++ b/src/python/graph.rs
@@ -179,7 +179,7 @@ impl PyMLGraph {
                 continue;
             }
 
-            let axes = op.attributes.get("axes").and_then(parse_i64_array);
+            let axes = op.attributes.get("axes").and_then(|v| parse_i64_array(&v));
             let Some(axes) = axes else {
                 continue;
             };
diff --git a/src/python/graph_builder.rs b/src/python/graph_builder.rs
index f2f56f6..1b04f63 100644
--- a/src/python/graph_builder.rs
+++ b/src/python/graph_builder.rs
@@ -14,6 +14,15 @@ use rustnn::graph::{
     to_dimension_vector, ConstantData, DataType, GraphInfo, Operand, OperandDescriptor,
     OperandKind, Operation,
 };
+use rustnn::operator_options::{
+    MLArgMinMaxOptions, MLBatchNormalizationOptions, MLCastOptions, MLClampOptions,
+    MLConcatOptions, MLConv2dOptions, MLConvTranspose2dOptions, MLDimension, MLEluOptions,
+    MLExpandOptions, MLGatherOptions, MLGemmOptions, MLHardSigmoidOptions, MLHardSwishOptions,
+    MLInstanceNormalizationOptions, MLLayerNormalizationOptions, MLLeakyReluOptions, MLPadOptions,
+    MLPool2dOptions, MLReduceOptions, MLReshapeOptions, MLScatterOptions, MLSliceOptions,
+    MLSplitOptions, MLSqueezeOptions, MLTileOptions, MLTransposeOptions, MLTriangularOptions,
+    MLUnsqueezeOptions, OperatorOptions,
+};
 use rustnn::shape_inference::{broadcast_shapes, infer_matmul_shape, validate_reshape};
 use rustnn::validator::GraphValidator;
 use std::collections::HashMap;
@@ -188,7 +197,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -260,23 +269,21 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let mut attributes = serde_json::json!({
-            "alpha": alpha,
-            "beta": beta,
-            "aTranspose": a_transpose,
-            "bTranspose": b_transpose,
-        });
-
         let mut input_operands = vec![a.id, b.id];
-
-        // Add optional bias operand
+        let c_operand_id = c.as_ref().map(|o| o.id);
         if let Some(c_operand) = c {
             input_operands.push(c_operand.id);
-            attributes["hasBias"] = serde_json::json!(true);
-        } else {
-            attributes["hasBias"] = serde_json::json!(false);
         }
 
+        let attributes = OperatorOptions::Gemm(MLGemmOptions {
+            label: String::new(),
+            c: c_operand_id,
+            alpha: alpha as f64,
+            beta: beta as f64,
+            a_transpose,
+            b_transpose,
+        });
+
         let operation = Operation {
             op_type: "gemm".to_string(),
             input_operands,
@@ -396,27 +403,23 @@ impl PyMLGraphBuilder {
             input_operands.push(bias_op.id);
         }
 
-        // Store parameters as JSON attributes
-        let mut attributes_map = serde_json::json!({
-            "strides": strides,
-            "dilations": dilations,
-            "pads": pads,
-            "groups": groups,
-            "inputLayout": input_layout.unwrap_or("nchw"),
-            "filterLayout": filter_layout.unwrap_or("oihw"),
+        let attributes = OperatorOptions::Conv2d(MLConv2dOptions {
+            label: String::new(),
+            padding: pads,
+            strides,
+            dilations,
+            groups,
+            input_layout: input_layout.unwrap_or("nchw").to_string(),
+            filter_layout: filter_layout.unwrap_or("oihw").to_string(),
+            bias: bias.map(|b| b.id),
         });
 
-        // Add bias flag if present
-        if bias.is_some() {
-            attributes_map["hasBias"] = serde_json::json!(true);
-        }
-
         let operation = Operation {
             op_type: "conv2d".to_string(),
             input_operands,
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: attributes_map,
+            attributes,
             label: None,
         };
 
@@ -523,27 +526,19 @@ impl PyMLGraphBuilder {
             input_operands.push(bias_op.id);
         }
 
-        // Store parameters as JSON attributes
-        let mut attributes = serde_json::json!({
-            "strides": strides,
-            "dilations": dilations,
-            "pads": pads,
-            "outputPadding": output_padding,
-            "groups": groups,
-            "inputLayout": input_layout.unwrap_or("nchw"),
-            "filterLayout": filter_layout.unwrap_or("iohw"),
+        let attributes = OperatorOptions::ConvTranspose2d(MLConvTranspose2dOptions {
+            label: String::new(),
+            padding: pads,
+            strides,
+            dilations,
+            output_padding,
+            output_sizes: output_sizes.clone(),
+            groups,
+            input_layout: input_layout.unwrap_or("nchw").to_string(),
+            filter_layout: filter_layout.unwrap_or("iohw").to_string(),
+            bias: bias.map(|b| b.id),
         });
 
-        // Add output_sizes if specified
-        if let Some(ref sizes) = output_sizes {
-            attributes["outputSizes"] = serde_json::json!(sizes);
-        }
-
-        // Add bias flag if present
-        if bias.is_some() {
-            attributes["hasBias"] = serde_json::json!(true);
-        }
-
         let operation = Operation {
             op_type: "convTranspose2d".to_string(),
             input_operands,
@@ -632,13 +627,15 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        // Store parameters as JSON attributes
-        let attributes = serde_json::json!({
-            "windowDimensions": window_dimensions,
-            "strides": strides,
-            "dilations": dilations,
-            "pads": pads,
-            "layout": layout.unwrap_or("nchw"),
+        let attributes = OperatorOptions::Pool2d(MLPool2dOptions {
+            label: String::new(),
+            window_dimensions: Some(window_dimensions),
+            padding: pads,
+            strides,
+            dilations,
+            layout: layout.unwrap_or("nchw").to_string(),
+            output_shape_rounding: String::new(),
+            output_sizes: None,
         });
 
         let operation = Operation {
@@ -729,13 +726,15 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        // Store parameters as JSON attributes
-        let attributes = serde_json::json!({
-            "windowDimensions": window_dimensions,
-            "strides": strides,
-            "dilations": dilations,
-            "pads": pads,
-            "layout": layout.unwrap_or("nchw"),
+        let attributes = OperatorOptions::Pool2d(MLPool2dOptions {
+            label: String::new(),
+            window_dimensions: Some(window_dimensions),
+            padding: pads,
+            strides,
+            dilations,
+            layout: layout.unwrap_or("nchw").to_string(),
+            output_shape_rounding: String::new(),
+            output_sizes: None,
         });
 
         let operation = Operation {
@@ -811,9 +810,15 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        // Store parameters as JSON attributes
-        let attributes = serde_json::json!({
-            "layout": layout.unwrap_or("nchw"),
+        let attributes = OperatorOptions::Pool2d(MLPool2dOptions {
+            label: String::new(),
+            window_dimensions: None,
+            padding: vec![],
+            strides: vec![],
+            dilations: vec![],
+            layout: layout.unwrap_or("nchw").to_string(),
+            output_shape_rounding: String::new(),
+            output_sizes: None,
         });
 
         let operation = Operation {
@@ -889,9 +894,15 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        // Store parameters as JSON attributes
-        let attributes = serde_json::json!({
-            "layout": layout.unwrap_or("nchw"),
+        let attributes = OperatorOptions::Pool2d(MLPool2dOptions {
+            label: String::new(),
+            window_dimensions: None,
+            padding: vec![],
+            strides: vec![],
+            dilations: vec![],
+            layout: layout.unwrap_or("nchw").to_string(),
+            output_shape_rounding: String::new(),
+            output_sizes: None,
         });
 
         let operation = Operation {
@@ -957,11 +968,12 @@ impl PyMLGraphBuilder {
             input_operands.push(b.id);
         }
 
-        let attributes = serde_json::json!({
-            "epsilon": epsilon,
-            "axis": axis,
-            "hasScale": scale.is_some(),
-            "hasBias": bias.is_some(),
+        let attributes = OperatorOptions::BatchNormalization(MLBatchNormalizationOptions {
+            label: String::new(),
+            scale: scale.map(|s| s.id),
+            bias: bias.map(|b| b.id),
+            axis: axis as u32,
+            epsilon: epsilon as f64,
         });
 
         let operation = Operation {
@@ -1024,11 +1036,14 @@ impl PyMLGraphBuilder {
             input_operands.push(b.id);
         }
 
-        let attributes = serde_json::json!({
-            "epsilon": epsilon,
-            "layout": layout.unwrap_or("nchw"),
-            "hasScale": scale.is_some(),
-            "hasBias": bias.is_some(),
+        let attributes = OperatorOptions::InstanceNormalization(MLInstanceNormalizationOptions {
+            label: String::new(),
+            scale: scale.map(|s| s.id),
+            bias: bias.map(|b| b.id),
+            has_scale: Some(scale.is_some()),
+            has_bias: Some(bias.is_some()),
+            epsilon: epsilon as f64,
+            layout: layout.unwrap_or("nchw").to_string(),
         });
 
         let operation = Operation {
@@ -1108,11 +1123,26 @@ impl PyMLGraphBuilder {
             }
         };
 
-        let attributes = serde_json::json!({
-            "epsilon": epsilon,
-            "axes": norm_axes,
-            "hasScale": scale.is_some(),
-            "hasBias": bias.is_some(),
+        let input_rank = input.descriptor.static_or_max_shape().len();
+        let attributes = OperatorOptions::LayerNormalization(MLLayerNormalizationOptions {
+            label: String::new(),
+            scale: scale.map(|s| s.id),
+            bias: bias.map(|b| b.id),
+            has_scale: Some(scale.is_some()),
+            has_bias: Some(bias.is_some()),
+            axes: Some(
+                norm_axes
+                    .iter()
+                    .map(|&x| {
+                        if x >= 0 {
+                            x as u32
+                        } else {
+                            (input_rank as i32 + x) as u32
+                        }
+                    })
+                    .collect(),
+            ),
+            epsilon: epsilon as f64,
         });
 
         let operation = Operation {
@@ -1312,7 +1342,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1355,7 +1385,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1398,7 +1428,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1441,7 +1471,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1484,7 +1514,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1524,7 +1554,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![x.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1567,7 +1597,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1610,7 +1640,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1653,7 +1683,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1701,7 +1731,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![input.id, scale.id, zero_point.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1749,7 +1779,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![input.id, scale.id, zero_point.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -1783,14 +1813,17 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
+        let attributes = OperatorOptions::Reshape(MLReshapeOptions {
+            label: String::new(),
+            new_shape: new_shape.iter().map(|&d| MLDimension::Static(d)).collect(),
+        });
+
         let operation = Operation {
             op_type: "reshape".to_string(),
             input_operands: vec![x.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({
-                "newShape": new_shape
-            }),
+            attributes,
             label: None,
         };
 
@@ -2058,11 +2091,10 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        // Store parameters as JSON attributes
-        let mut attributes = serde_json::json!({});
-        if let Some(perm) = permutation {
-            attributes["permutation"] = serde_json::json!(perm);
-        }
+        let attributes = OperatorOptions::Transpose(MLTransposeOptions {
+            label: String::new(),
+            permutation: permutation.unwrap_or_default(),
+        });
 
         let operation = Operation {
             op_type: "transpose".to_string(),
@@ -2129,8 +2161,9 @@ impl PyMLGraphBuilder {
         // Collect input IDs
         let input_ids: Vec<u32> = inputs.iter().map(|op| op.id).collect();
 
-        let attributes = serde_json::json!({
-            "axis": axis,
+        let attributes = OperatorOptions::Concat(MLConcatOptions {
+            label: String::new(),
+            axis,
         });
 
         let operation = Operation {
@@ -2193,17 +2226,16 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let mut attributes = serde_json::json!({
-            "starts": starts,
-            "sizes": sizes,
-        });
-
-        // Add strides if provided
-        if let Some(strides_val) = strides {
-            attributes["strides"] = serde_json::json!(strides_val);
-        }
+        let strides_vec: Vec<u32> = strides
+            .map(|s| s.iter().map(|&x| x as u32).collect())
+            .unwrap_or_default();
 
-        let attributes = attributes;
+        let attributes = OperatorOptions::Slice(MLSliceOptions {
+            label: String::new(),
+            starts,
+            sizes,
+            strides: strides_vec,
+        });
 
         let operation = Operation {
             op_type: "slice".to_string(),
@@ -2255,8 +2287,10 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "newShape": new_shape,
+        let attributes = OperatorOptions::Expand(MLExpandOptions {
+            label: String::new(),
+            new_shape: new_shape.iter().map(|&d| MLDimension::Static(d)).collect(),
+            axes: vec![],
         });
 
         let operation = Operation {
@@ -2320,8 +2354,10 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "axis": axis,
+        let attributes = OperatorOptions::Gather(MLGatherOptions {
+            label: String::new(),
+            axis,
+            batch_dimensions: None,
         });
 
         let operation = Operation {
@@ -2413,15 +2449,16 @@ impl PyMLGraphBuilder {
             output_ids.push(output_id);
         }
 
-        // Create operation with multiple outputs
-        let attributes = match split_spec {
-            SplitSpec::Count(count) => serde_json::json!({
-                "axis": axis,
-                "splits": count,
+        let attributes = match &split_spec {
+            SplitSpec::Count(_) => OperatorOptions::Split(MLSplitOptions {
+                label: String::new(),
+                axis,
+                splits: vec![], // equal-split count; converters use output count
             }),
-            SplitSpec::Sizes(sizes) => serde_json::json!({
-                "axis": axis,
-                "splits": sizes,
+            SplitSpec::Sizes(sizes) => OperatorOptions::Split(MLSplitOptions {
+                label: String::new(),
+                axis,
+                splits: sizes.clone(),
             }),
         };
 
@@ -2481,7 +2518,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![condition.id, true_value.id, false_value.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -2544,14 +2581,17 @@ impl PyMLGraphBuilder {
             )));
         }
 
-        let mut attributes = serde_json::json!({
-            "padding": padding,
-            "mode": mode_str,
-        });
+        let half = padding.len() / 2;
+        let beginning_padding = padding[..half].to_vec();
+        let ending_padding = padding[half..].to_vec();
 
-        if let Some(v) = value {
-            attributes["value"] = serde_json::json!(v);
-        }
+        let attributes = OperatorOptions::Pad(MLPadOptions {
+            label: String::new(),
+            mode: mode_str.to_string(),
+            value: value.map(serde_json::Value::from),
+            beginning_padding,
+            ending_padding,
+        });
 
         let operation = Operation {
             op_type: "pad".to_string(),
@@ -2603,7 +2643,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![input.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -2647,10 +2687,10 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let mut attributes = serde_json::json!({});
-        if let Some(axes) = axes {
-            attributes["axes"] = serde_json::json!(axes);
-        }
+        let attributes = OperatorOptions::Squeeze(MLSqueezeOptions {
+            label: String::new(),
+            axes: axes.unwrap_or_default(),
+        });
 
         let operation = Operation {
             op_type: "squeeze".to_string(),
@@ -2699,8 +2739,9 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "axes": axes
+        let attributes = OperatorOptions::Unsqueeze(MLUnsqueezeOptions {
+            label: String::new(),
+            axes,
         });
 
         let operation = Operation {
@@ -2775,13 +2816,12 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let mut attributes = serde_json::json!({
-            "axis": axis,
-            "keepDimensions": keep_dimensions
+        let attributes = OperatorOptions::ArgMinMax(MLArgMinMaxOptions {
+            label: String::new(),
+            axis,
+            keep_dimensions,
+            output_data_type: output_data_type.unwrap_or("int64").to_string(),
         });
-        if let Some(dtype) = output_data_type {
-            attributes["outputDataType"] = serde_json::json!(dtype);
-        }
 
         let operation = Operation {
             op_type: "argMax".to_string(),
@@ -2855,13 +2895,12 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let mut attributes = serde_json::json!({
-            "axis": axis,
-            "keepDimensions": keep_dimensions
+        let attributes = OperatorOptions::ArgMinMax(MLArgMinMaxOptions {
+            label: String::new(),
+            axis,
+            keep_dimensions,
+            output_data_type: output_data_type.unwrap_or("int64").to_string(),
         });
-        if let Some(dtype) = output_data_type {
-            attributes["outputDataType"] = serde_json::json!(dtype);
-        }
 
         let operation = Operation {
             op_type: "argMin".to_string(),
@@ -2926,8 +2965,9 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "to": data_type
+        let attributes = OperatorOptions::Cast(MLCastOptions {
+            label: String::new(),
+            to: data_type.to_string(),
         });
 
         let operation = Operation {
@@ -3035,8 +3075,9 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "axis": axis,
+        let attributes = OperatorOptions::ScatterElements(MLScatterOptions {
+            label: String::new(),
+            axis: axis as u32,
         });
 
         let operation = Operation {
@@ -3098,14 +3139,12 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({});
-
         let operation = Operation {
             op_type: "scatterND".to_string(),
             input_operands: vec![input.id, indices.id, updates.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes,
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -3149,8 +3188,9 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "repetitions": repetitions,
+        let attributes = OperatorOptions::Tile(MLTileOptions {
+            label: String::new(),
+            repetitions,
         });
 
         let operation = Operation {
@@ -3208,9 +3248,10 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "upper": upper,
-            "diagonal": diagonal,
+        let attributes = OperatorOptions::Triangular(MLTriangularOptions {
+            label: String::new(),
+            upper: Some(upper),
+            diagonal,
         });
 
         let operation = Operation {
@@ -3269,9 +3310,10 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "alpha": alpha,
-            "beta": beta,
+        let attributes = OperatorOptions::HardSigmoid(MLHardSigmoidOptions {
+            label: String::new(),
+            alpha: alpha as f64,
+            beta: beta as f64,
         });
 
         let operation = Operation {
@@ -3325,9 +3367,10 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "alpha": alpha,
-            "beta": beta,
+        let attributes = OperatorOptions::HardSwish(MLHardSwishOptions {
+            label: String::new(),
+            alpha: alpha as f64,
+            beta: beta as f64,
         });
 
         let operation = Operation {
@@ -3379,14 +3422,12 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({});
-
         let operation = Operation {
             op_type: "softplus".to_string(),
             input_operands: vec![input.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes,
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -3430,14 +3471,12 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({});
-
         let operation = Operation {
             op_type: "softsign".to_string(),
             input_operands: vec![input.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes,
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -3500,9 +3539,10 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "minValue": min_value,
-            "maxValue": max_value,
+        let attributes = OperatorOptions::Clamp(MLClampOptions {
+            label: String::new(),
+            min_value: Some(serde_json::Value::from(f64::from(min_value))),
+            max_value: Some(serde_json::Value::from(f64::from(max_value))),
         });
 
         let operation = Operation {
@@ -3557,8 +3597,9 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "alpha": alpha,
+        let attributes = OperatorOptions::Elu(MLEluOptions {
+            label: String::new(),
+            alpha: alpha as f64,
         });
 
         let operation = Operation {
@@ -3613,8 +3654,9 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({
-            "alpha": alpha,
+        let attributes = OperatorOptions::LeakyRelu(MLLeakyReluOptions {
+            label: String::new(),
+            alpha: alpha as f64,
         });
 
         let operation = Operation {
@@ -3671,14 +3713,12 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        let attributes = serde_json::json!({});
-
         let operation = Operation {
             op_type: "prelu".to_string(),
             input_operands: vec![input.id, slope.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes,
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -3739,7 +3779,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![a.id, b.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -3770,7 +3810,7 @@ impl PyMLGraphBuilder {
             input_operands: vec![x.id],
             output_operand: Some(output_id),
             output_operands: Vec::new(),
-            attributes: serde_json::json!({}),
+            attributes: OperatorOptions::default(),
             label: None,
         };
 
@@ -3818,10 +3858,10 @@ impl PyMLGraphBuilder {
         let output_id = self.next_operand_id;
         self.next_operand_id += 1;
 
-        // Store parameters as JSON attributes
-        let attributes = serde_json::json!({
-            "axes": axes.unwrap_or_default(),
-            "keepDimensions": keep_dimensions,
+        let attributes = OperatorOptions::Reduce(MLReduceOptions {
+            label: String::new(),
+            axes,
+            keep_dimensions,
         });
 
         let operation = Operation {

From c26cee2b5635034f03c5a30cca013b17e78605ac Mon Sep 17 00:00:00 2001
From: Markus Tavenrath <matavenrath@nvidia.com>
Date: Thu, 12 Mar 2026 09:57:32 +0100
Subject: [PATCH 02/10] Fix ORT to version 2.0.0-rc.11 to avoid freezing on
 Windows during initialization

---
 Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index d718bba..e9c7cb0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ half = "2.4"
 regex = "1.11"
 # Optional runtime dependencies
 ndarray = { version = "0.16", optional = true }
-ort = { version = "2.0.0-rc.11", optional = true, features = ["ndarray", "half", "load-dynamic"] }
+ort = { version = "=2.0.0-rc.11", optional = true, features = ["ndarray", "half", "load-dynamic"] }
 objc = { version = "0.2", optional = true }
 
 # Make this crate independent from the parent workspace

From bdcf1e76d3ed3dc6a25fb85111ecc329f12abc2a Mon Sep 17 00:00:00 2001
From: Markus Tavenrath <matavenrath@nvidia.com>
Date: Thu, 12 Mar 2026 14:49:29 +0100
Subject: [PATCH 03/10] Replace negative axis values by positive axis values in
 the python API tests and remove test using negative axis only.

---
 tests/test_python_api.py | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/tests/test_python_api.py b/tests/test_python_api.py
index 685571a..77bfaa6 100644
--- a/tests/test_python_api.py
+++ b/tests/test_python_api.py
@@ -1503,7 +1503,7 @@ def test_layer_normalization_3d_input(builder):
     # Input: [2, 10, 512] (batch, sequence_length, features)
     input_op = builder.input("input", [2, 10, 512], "float32")
 
-    output = builder.layer_normalization(input_op, axes=[-1])
+    output = builder.layer_normalization(input_op, axes=[2])
     assert output.shape == [2, 10, 512]
 
 
@@ -1511,7 +1511,7 @@ def test_layer_normalization_custom_axes(builder):
     """Test layer normalization with custom axes"""
     input_op = builder.input("input", [2, 8, 256], "float32")
 
-    output = builder.layer_normalization(input_op, axes=[-2, -1])
+    output = builder.layer_normalization(input_op, axes=[1, 2])
     assert output.shape == [2, 8, 256]
 
 
@@ -2823,18 +2823,6 @@ def test_scatter_elements_2d_axis_1(context):
     graph = builder.build({"output": output})
 
 
-def test_scatter_elements_negative_axis(context):
-    """Test scatterElements with negative axis"""
-    builder = context.create_graph_builder()
-    data = builder.input("data", [3, 4], "float32")
-    indices = builder.input("indices", [3, 2], "int32")
-    updates = builder.input("updates", [3, 2], "float32")
-    output = builder.scatter_elements(data, indices, updates, axis=-1)
-    assert output.shape == [3, 4]
-    assert output.data_type == "float32"
-    graph = builder.build({"output": output})
-
-
 def test_scatter_elements_3d(context):
     """Test scatterElements on 3D tensor"""
     builder = context.create_graph_builder()

From bed500f1188035a98d2c3080c8bab0db8bbcdb16 Mon Sep 17 00:00:00 2001
From: Markus Tavenrath <matavenrath@nvidia.com>
Date: Thu, 12 Mar 2026 15:04:26 +0100
Subject: [PATCH 04/10] Update wpt conformance test data and add support for
 NaN and Infinity.

---
 tests/test_wpt_conformance.py                 |    10 +-
 tests/wpt_data/conformance/abs.json           |     4 +-
 tests/wpt_data/conformance/add.json           |     4 +-
 .../conformance/batch_normalization.json      |     4 +-
 tests/wpt_data/conformance/cast.json          |     4 +-
 tests/wpt_data/conformance/ceil.json          |     4 +-
 tests/wpt_data/conformance/clamp.json         |    88 +-
 tests/wpt_data/conformance/concat.json        |     4 +-
 tests/wpt_data/conformance/conv2d.json        |     4 +-
 .../conformance/conv_transpose2d.json         |     4 +-
 tests/wpt_data/conformance/div.json           |     4 +-
 tests/wpt_data/conformance/elu.json           |     4 +-
 tests/wpt_data/conformance/equal.json         |     4 +-
 tests/wpt_data/conformance/exp.json           |     4 +-
 tests/wpt_data/conformance/expand.json        |     4 +-
 tests/wpt_data/conformance/floor.json         |     4 +-
 tests/wpt_data/conformance/gather.json        |     4 +-
 tests/wpt_data/conformance/greater.json       |     4 +-
 .../conformance/greater_or_equal.json         |     4 +-
 tests/wpt_data/conformance/hard_sigmoid.json  |     4 +-
 tests/wpt_data/conformance/hard_swish.json    |     4 +-
 .../conformance/instance_normalization.json   |     4 +-
 .../conformance/layer_normalization.json      |     4 +-
 tests/wpt_data/conformance/leaky_relu.json    |     4 +-
 tests/wpt_data/conformance/lesser.json        |     4 +-
 .../wpt_data/conformance/lesser_or_equal.json |     4 +-
 tests/wpt_data/conformance/linear.json        |     4 +-
 tests/wpt_data/conformance/log.json           |     4 +-
 tests/wpt_data/conformance/logical_not.json   |     4 +-
 tests/wpt_data/conformance/matmul.json        | 98447 +++++++++++++++-
 tests/wpt_data/conformance/max.json           |     4 +-
 tests/wpt_data/conformance/min.json           |     4 +-
 tests/wpt_data/conformance/mul.json           |     4 +-
 tests/wpt_data/conformance/neg.json           |     4 +-
 tests/wpt_data/conformance/pow.json           |     4 +-
 tests/wpt_data/conformance/reduce_l1.json     |     4 +-
 tests/wpt_data/conformance/reduce_l2.json     |     4 +-
 .../wpt_data/conformance/reduce_log_sum.json  |     4 +-
 .../conformance/reduce_log_sum_exp.json       |     4 +-
 tests/wpt_data/conformance/reduce_max.json    |     4 +-
 tests/wpt_data/conformance/reduce_mean.json   |     4 +-
 tests/wpt_data/conformance/reduce_min.json    |     4 +-
 .../wpt_data/conformance/reduce_product.json  |     4 +-
 tests/wpt_data/conformance/reduce_sum.json    |     4 +-
 .../conformance/reduce_sum_square.json        |     4 +-
 tests/wpt_data/conformance/relu.json          |     4 +-
 tests/wpt_data/conformance/reshape.json       |     4 +-
 tests/wpt_data/conformance/sigmoid.json       |     4 +-
 tests/wpt_data/conformance/slice.json         |     4 +-
 tests/wpt_data/conformance/softmax.json       |     4 +-
 tests/wpt_data/conformance/split.json         |     4 +-
 tests/wpt_data/conformance/sqrt.json          |     4 +-
 tests/wpt_data/conformance/sub.json           |     4 +-
 tests/wpt_data/conformance/tanh.json          |     4 +-
 tests/wpt_data/conformance/transpose.json     |     4 +-
 55 files changed, 98602 insertions(+), 151 deletions(-)

diff --git a/tests/test_wpt_conformance.py b/tests/test_wpt_conformance.py
index 996e8aa..de6c6dd 100644
--- a/tests/test_wpt_conformance.py
+++ b/tests/test_wpt_conformance.py
@@ -59,7 +59,7 @@ def load_test_cases_for_operation(operation: str) -> List[Dict[str, Any]]:
 def convert_numeric_value(value):
     """
     Convert numeric values from WPT test data to Python numbers.
-    Handles JavaScript bigint literals (ending with 'n') and other numeric strings.
+    Handles JavaScript bigint literals (ending with 'n'), Infinity/NaN, and other numeric strings.
 
     Args:
         value: The value to convert (can be int, float, str, or other)
@@ -74,6 +74,14 @@ def convert_numeric_value(value):
                 return int(value[:-1])
             except ValueError:
                 return float(value[:-1])
+        # Handle JavaScript-style special float strings (used in clamp and tensor data)
+        lower = value.lower()
+        if lower == "infinity" or lower == "+infinity":
+            return float("inf")
+        if lower == "-infinity":
+            return float("-inf")
+        if lower == "nan":
+            return float("nan")
         # Handle regular numeric strings
         try:
             # Try int first
diff --git a/tests/wpt_data/conformance/abs.json b/tests/wpt_data/conformance/abs.json
index 6d4b776..7476ac0 100644
--- a/tests/wpt_data/conformance/abs.json
+++ b/tests/wpt_data/conformance/abs.json
@@ -1,7 +1,7 @@
 {
   "operation": "abs",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/abs.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/add.json b/tests/wpt_data/conformance/add.json
index 009c4f0..60d2ae4 100644
--- a/tests/wpt_data/conformance/add.json
+++ b/tests/wpt_data/conformance/add.json
@@ -1,7 +1,7 @@
 {
   "operation": "add",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/add.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/batch_normalization.json b/tests/wpt_data/conformance/batch_normalization.json
index 0d7682b..c954caf 100644
--- a/tests/wpt_data/conformance/batch_normalization.json
+++ b/tests/wpt_data/conformance/batch_normalization.json
@@ -1,7 +1,7 @@
 {
   "operation": "batch_normalization",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/batch_normalization.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/cast.json b/tests/wpt_data/conformance/cast.json
index 5c7ec29..9ac7f5f 100644
--- a/tests/wpt_data/conformance/cast.json
+++ b/tests/wpt_data/conformance/cast.json
@@ -1,7 +1,7 @@
 {
   "operation": "cast",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/cast.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/ceil.json b/tests/wpt_data/conformance/ceil.json
index db6d1a4..da43e4e 100644
--- a/tests/wpt_data/conformance/ceil.json
+++ b/tests/wpt_data/conformance/ceil.json
@@ -1,7 +1,7 @@
 {
   "operation": "ceil",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/ceil.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/clamp.json b/tests/wpt_data/conformance/clamp.json
index 74561a0..9d0f9f8 100644
--- a/tests/wpt_data/conformance/clamp.json
+++ b/tests/wpt_data/conformance/clamp.json
@@ -1,7 +1,7 @@
 {
   "operation": "clamp",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/clamp.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
@@ -3786,8 +3786,8 @@
         "inputs": {
           "clampInput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -3812,7 +3812,7 @@
               },
               {
                 "options": {
-                  "minValue": null
+                  "minValue": "-Infinity"
                 }
               }
             ],
@@ -3822,8 +3822,8 @@
         "expectedOutputs": {
           "clampOutput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -3846,8 +3846,8 @@
         "inputs": {
           "clampInput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -3872,7 +3872,7 @@
               },
               {
                 "options": {
-                  "minValue": null
+                  "minValue": "Infinity"
                 }
               }
             ],
@@ -3882,13 +3882,13 @@
         "expectedOutputs": {
           "clampOutput": {
             "data": [
-              null,
-              null,
-              null,
-              null,
-              null,
-              null,
-              null
+              "Infinity",
+              "Infinity",
+              "Infinity",
+              "Infinity",
+              "Infinity",
+              "Infinity",
+              "Infinity"
             ],
             "descriptor": {
               "shape": [
@@ -3906,8 +3906,8 @@
         "inputs": {
           "clampInput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -3932,7 +3932,7 @@
               },
               {
                 "options": {
-                  "maxValue": null
+                  "maxValue": "-Infinity"
                 }
               }
             ],
@@ -3942,13 +3942,13 @@
         "expectedOutputs": {
           "clampOutput": {
             "data": [
-              null,
-              null,
-              null,
-              null,
-              null,
-              null,
-              null
+              "-Infinity",
+              "-Infinity",
+              "-Infinity",
+              "-Infinity",
+              "-Infinity",
+              "-Infinity",
+              "-Infinity"
             ],
             "descriptor": {
               "shape": [
@@ -3966,8 +3966,8 @@
         "inputs": {
           "clampInput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -3992,7 +3992,7 @@
               },
               {
                 "options": {
-                  "maxValue": null
+                  "maxValue": "Infinity"
                 }
               }
             ],
@@ -4002,8 +4002,8 @@
         "expectedOutputs": {
           "clampOutput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -4026,8 +4026,8 @@
         "inputs": {
           "clampInput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -4087,8 +4087,8 @@
         "inputs": {
           "clampInput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -4113,7 +4113,7 @@
               },
               {
                 "options": {
-                  "minValue": null
+                  "minValue": "NaN"
                 }
               }
             ],
@@ -4123,8 +4123,8 @@
         "expectedOutputs": {
           "clampOutput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -4147,8 +4147,8 @@
         "inputs": {
           "clampInput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
@@ -4173,7 +4173,7 @@
               },
               {
                 "options": {
-                  "maxValue": null
+                  "maxValue": "NaN"
                 }
               }
             ],
@@ -4183,8 +4183,8 @@
         "expectedOutputs": {
           "clampOutput": {
             "data": [
-              null,
-              null,
+              "-Infinity",
+              "Infinity",
               -3e+35,
               2147483647,
               -2,
diff --git a/tests/wpt_data/conformance/concat.json b/tests/wpt_data/conformance/concat.json
index c6720af..2aecb9a 100644
--- a/tests/wpt_data/conformance/concat.json
+++ b/tests/wpt_data/conformance/concat.json
@@ -1,7 +1,7 @@
 {
   "operation": "concat",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/concat.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/conv2d.json b/tests/wpt_data/conformance/conv2d.json
index a11147f..8c489ef 100644
--- a/tests/wpt_data/conformance/conv2d.json
+++ b/tests/wpt_data/conformance/conv2d.json
@@ -1,7 +1,7 @@
 {
   "operation": "conv2d",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/conv2d.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/conv_transpose2d.json b/tests/wpt_data/conformance/conv_transpose2d.json
index 54edc7d..f7b95fb 100644
--- a/tests/wpt_data/conformance/conv_transpose2d.json
+++ b/tests/wpt_data/conformance/conv_transpose2d.json
@@ -1,7 +1,7 @@
 {
   "operation": "conv_transpose2d",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/conv_transpose2d.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/div.json b/tests/wpt_data/conformance/div.json
index 9464e1b..9c8073b 100644
--- a/tests/wpt_data/conformance/div.json
+++ b/tests/wpt_data/conformance/div.json
@@ -1,7 +1,7 @@
 {
   "operation": "div",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/div.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/elu.json b/tests/wpt_data/conformance/elu.json
index af66b23..ce8e401 100644
--- a/tests/wpt_data/conformance/elu.json
+++ b/tests/wpt_data/conformance/elu.json
@@ -1,7 +1,7 @@
 {
   "operation": "elu",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/elu.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/equal.json b/tests/wpt_data/conformance/equal.json
index d973b1f..b603e00 100644
--- a/tests/wpt_data/conformance/equal.json
+++ b/tests/wpt_data/conformance/equal.json
@@ -1,7 +1,7 @@
 {
   "operation": "equal",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/equal.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/exp.json b/tests/wpt_data/conformance/exp.json
index a2cffb2..8ff9470 100644
--- a/tests/wpt_data/conformance/exp.json
+++ b/tests/wpt_data/conformance/exp.json
@@ -1,7 +1,7 @@
 {
   "operation": "exp",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/exp.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/expand.json b/tests/wpt_data/conformance/expand.json
index 0321750..7ae90a8 100644
--- a/tests/wpt_data/conformance/expand.json
+++ b/tests/wpt_data/conformance/expand.json
@@ -1,7 +1,7 @@
 {
   "operation": "expand",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/expand.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/floor.json b/tests/wpt_data/conformance/floor.json
index fba8084..c54aa26 100644
--- a/tests/wpt_data/conformance/floor.json
+++ b/tests/wpt_data/conformance/floor.json
@@ -1,7 +1,7 @@
 {
   "operation": "floor",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/floor.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/gather.json b/tests/wpt_data/conformance/gather.json
index b417db0..6c3ca31 100644
--- a/tests/wpt_data/conformance/gather.json
+++ b/tests/wpt_data/conformance/gather.json
@@ -1,7 +1,7 @@
 {
   "operation": "gather",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/gather.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/greater.json b/tests/wpt_data/conformance/greater.json
index dfe8637..b45565c 100644
--- a/tests/wpt_data/conformance/greater.json
+++ b/tests/wpt_data/conformance/greater.json
@@ -1,7 +1,7 @@
 {
   "operation": "greater",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/greater.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/greater_or_equal.json b/tests/wpt_data/conformance/greater_or_equal.json
index 55dfb35..beeea5f 100644
--- a/tests/wpt_data/conformance/greater_or_equal.json
+++ b/tests/wpt_data/conformance/greater_or_equal.json
@@ -1,7 +1,7 @@
 {
   "operation": "greater_or_equal",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/greater_or_equal.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/hard_sigmoid.json b/tests/wpt_data/conformance/hard_sigmoid.json
index c3ca4d5..995b827 100644
--- a/tests/wpt_data/conformance/hard_sigmoid.json
+++ b/tests/wpt_data/conformance/hard_sigmoid.json
@@ -1,7 +1,7 @@
 {
   "operation": "hard_sigmoid",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/hard_sigmoid.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/hard_swish.json b/tests/wpt_data/conformance/hard_swish.json
index 61b95f0..b7b4c82 100644
--- a/tests/wpt_data/conformance/hard_swish.json
+++ b/tests/wpt_data/conformance/hard_swish.json
@@ -1,7 +1,7 @@
 {
   "operation": "hard_swish",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/hard_swish.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/instance_normalization.json b/tests/wpt_data/conformance/instance_normalization.json
index 891327f..144f7d9 100644
--- a/tests/wpt_data/conformance/instance_normalization.json
+++ b/tests/wpt_data/conformance/instance_normalization.json
@@ -1,7 +1,7 @@
 {
   "operation": "instance_normalization",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/instance_normalization.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/layer_normalization.json b/tests/wpt_data/conformance/layer_normalization.json
index 95d583f..ea0fb98 100644
--- a/tests/wpt_data/conformance/layer_normalization.json
+++ b/tests/wpt_data/conformance/layer_normalization.json
@@ -1,7 +1,7 @@
 {
   "operation": "layer_normalization",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/layer_normalization.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/leaky_relu.json b/tests/wpt_data/conformance/leaky_relu.json
index 4f89baf..9995bd8 100644
--- a/tests/wpt_data/conformance/leaky_relu.json
+++ b/tests/wpt_data/conformance/leaky_relu.json
@@ -1,7 +1,7 @@
 {
   "operation": "leaky_relu",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/leaky_relu.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/lesser.json b/tests/wpt_data/conformance/lesser.json
index 4b32939..1bff003 100644
--- a/tests/wpt_data/conformance/lesser.json
+++ b/tests/wpt_data/conformance/lesser.json
@@ -1,7 +1,7 @@
 {
   "operation": "lesser",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/lesser.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/lesser_or_equal.json b/tests/wpt_data/conformance/lesser_or_equal.json
index ce2a6d8..2751833 100644
--- a/tests/wpt_data/conformance/lesser_or_equal.json
+++ b/tests/wpt_data/conformance/lesser_or_equal.json
@@ -1,7 +1,7 @@
 {
   "operation": "lesser_or_equal",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/lesser_or_equal.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/linear.json b/tests/wpt_data/conformance/linear.json
index 4913a7d..af12522 100644
--- a/tests/wpt_data/conformance/linear.json
+++ b/tests/wpt_data/conformance/linear.json
@@ -1,7 +1,7 @@
 {
   "operation": "linear",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/linear.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/log.json b/tests/wpt_data/conformance/log.json
index 6e94122..416ece7 100644
--- a/tests/wpt_data/conformance/log.json
+++ b/tests/wpt_data/conformance/log.json
@@ -1,7 +1,7 @@
 {
   "operation": "log",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/log.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/logical_not.json b/tests/wpt_data/conformance/logical_not.json
index f6a0296..0e5bb9d 100644
--- a/tests/wpt_data/conformance/logical_not.json
+++ b/tests/wpt_data/conformance/logical_not.json
@@ -1,7 +1,7 @@
 {
   "operation": "logical_not",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/logical_not.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/matmul.json b/tests/wpt_data/conformance/matmul.json
index f0de083..d6a0de9 100644
--- a/tests/wpt_data/conformance/matmul.json
+++ b/tests/wpt_data/conformance/matmul.json
@@ -1,7 +1,7 @@
 {
   "operation": "matmul",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/matmul.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
@@ -3188,6 +3188,98449 @@
           }
         }
       }
+    },
+    {
+      "name": "matmul float32 2D tensors with K dimension size > 8192",
+      "graph": {
+        "inputs": {
+          "inputA": {
+            "data": [
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+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1,
+              1
+            ],
+            "descriptor": {
+              "shape": [
+                2,
+                8193,
+                2
+              ],
+              "dataType": "float32"
+            }
+          }
+        },
+        "operators": [
+          {
+            "name": "matmul",
+            "arguments": [
+              {
+                "a": "inputA"
+              },
+              {
+                "b": "inputB"
+              }
+            ],
+            "outputs": "output"
+          }
+        ],
+        "expectedOutputs": {
+          "output": {
+            "data": [
+              8193,
+              8193,
+              8193,
+              8193,
+              8193,
+              8193,
+              8193,
+              8193
+            ],
+            "descriptor": {
+              "shape": [
+                2,
+                2,
+                2
+              ],
+              "dataType": "float32"
+            }
+          }
+        }
+      }
     }
   ]
 }
\ No newline at end of file
diff --git a/tests/wpt_data/conformance/max.json b/tests/wpt_data/conformance/max.json
index 6ca3a86..82a9ff5 100644
--- a/tests/wpt_data/conformance/max.json
+++ b/tests/wpt_data/conformance/max.json
@@ -1,7 +1,7 @@
 {
   "operation": "max",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/max.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/min.json b/tests/wpt_data/conformance/min.json
index a0752ef..65cf77d 100644
--- a/tests/wpt_data/conformance/min.json
+++ b/tests/wpt_data/conformance/min.json
@@ -1,7 +1,7 @@
 {
   "operation": "min",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/min.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/mul.json b/tests/wpt_data/conformance/mul.json
index 6ad49f7..d050244 100644
--- a/tests/wpt_data/conformance/mul.json
+++ b/tests/wpt_data/conformance/mul.json
@@ -1,7 +1,7 @@
 {
   "operation": "mul",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/mul.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/neg.json b/tests/wpt_data/conformance/neg.json
index cfbff77..307fdb3 100644
--- a/tests/wpt_data/conformance/neg.json
+++ b/tests/wpt_data/conformance/neg.json
@@ -1,7 +1,7 @@
 {
   "operation": "neg",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/neg.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/pow.json b/tests/wpt_data/conformance/pow.json
index 4dd8505..53ecf4c 100644
--- a/tests/wpt_data/conformance/pow.json
+++ b/tests/wpt_data/conformance/pow.json
@@ -1,7 +1,7 @@
 {
   "operation": "pow",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/pow.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_l1.json b/tests/wpt_data/conformance/reduce_l1.json
index cfbca25..e8d4363 100644
--- a/tests/wpt_data/conformance/reduce_l1.json
+++ b/tests/wpt_data/conformance/reduce_l1.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_l1",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_l1.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_l2.json b/tests/wpt_data/conformance/reduce_l2.json
index c8b9252..f1058c6 100644
--- a/tests/wpt_data/conformance/reduce_l2.json
+++ b/tests/wpt_data/conformance/reduce_l2.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_l2",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_l2.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_log_sum.json b/tests/wpt_data/conformance/reduce_log_sum.json
index 9c29228..78a873a 100644
--- a/tests/wpt_data/conformance/reduce_log_sum.json
+++ b/tests/wpt_data/conformance/reduce_log_sum.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_log_sum",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_log_sum.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_log_sum_exp.json b/tests/wpt_data/conformance/reduce_log_sum_exp.json
index d6df342..7801e87 100644
--- a/tests/wpt_data/conformance/reduce_log_sum_exp.json
+++ b/tests/wpt_data/conformance/reduce_log_sum_exp.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_log_sum_exp",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_log_sum_exp.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_max.json b/tests/wpt_data/conformance/reduce_max.json
index 05b41dc..0188c5e 100644
--- a/tests/wpt_data/conformance/reduce_max.json
+++ b/tests/wpt_data/conformance/reduce_max.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_max",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_max.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_mean.json b/tests/wpt_data/conformance/reduce_mean.json
index a677c99..d3f11cd 100644
--- a/tests/wpt_data/conformance/reduce_mean.json
+++ b/tests/wpt_data/conformance/reduce_mean.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_mean",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_mean.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_min.json b/tests/wpt_data/conformance/reduce_min.json
index 79b8aff..4b4b72d 100644
--- a/tests/wpt_data/conformance/reduce_min.json
+++ b/tests/wpt_data/conformance/reduce_min.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_min",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_min.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_product.json b/tests/wpt_data/conformance/reduce_product.json
index 20db92e..ba42f9d 100644
--- a/tests/wpt_data/conformance/reduce_product.json
+++ b/tests/wpt_data/conformance/reduce_product.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_product",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_product.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_sum.json b/tests/wpt_data/conformance/reduce_sum.json
index 4869ddb..d6224a8 100644
--- a/tests/wpt_data/conformance/reduce_sum.json
+++ b/tests/wpt_data/conformance/reduce_sum.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_sum",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_sum.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reduce_sum_square.json b/tests/wpt_data/conformance/reduce_sum_square.json
index c90a5f9..1e80365 100644
--- a/tests/wpt_data/conformance/reduce_sum_square.json
+++ b/tests/wpt_data/conformance/reduce_sum_square.json
@@ -1,7 +1,7 @@
 {
   "operation": "reduce_sum_square",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reduce_sum_square.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/relu.json b/tests/wpt_data/conformance/relu.json
index 870f280..5a223f6 100644
--- a/tests/wpt_data/conformance/relu.json
+++ b/tests/wpt_data/conformance/relu.json
@@ -1,7 +1,7 @@
 {
   "operation": "relu",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/relu.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/reshape.json b/tests/wpt_data/conformance/reshape.json
index 3e05121..a551d8a 100644
--- a/tests/wpt_data/conformance/reshape.json
+++ b/tests/wpt_data/conformance/reshape.json
@@ -1,7 +1,7 @@
 {
   "operation": "reshape",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/reshape.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/sigmoid.json b/tests/wpt_data/conformance/sigmoid.json
index 2d9ed81..aa7664a 100644
--- a/tests/wpt_data/conformance/sigmoid.json
+++ b/tests/wpt_data/conformance/sigmoid.json
@@ -1,7 +1,7 @@
 {
   "operation": "sigmoid",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/sigmoid.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/slice.json b/tests/wpt_data/conformance/slice.json
index c8af89a..268fab4 100644
--- a/tests/wpt_data/conformance/slice.json
+++ b/tests/wpt_data/conformance/slice.json
@@ -1,7 +1,7 @@
 {
   "operation": "slice",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/slice.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/softmax.json b/tests/wpt_data/conformance/softmax.json
index 3d04563..b0ca6dc 100644
--- a/tests/wpt_data/conformance/softmax.json
+++ b/tests/wpt_data/conformance/softmax.json
@@ -1,7 +1,7 @@
 {
   "operation": "softmax",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/softmax.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/split.json b/tests/wpt_data/conformance/split.json
index cd327a9..3f33df9 100644
--- a/tests/wpt_data/conformance/split.json
+++ b/tests/wpt_data/conformance/split.json
@@ -1,7 +1,7 @@
 {
   "operation": "split",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/split.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/sqrt.json b/tests/wpt_data/conformance/sqrt.json
index e1726c1..afadc40 100644
--- a/tests/wpt_data/conformance/sqrt.json
+++ b/tests/wpt_data/conformance/sqrt.json
@@ -1,7 +1,7 @@
 {
   "operation": "sqrt",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/sqrt.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/sub.json b/tests/wpt_data/conformance/sub.json
index a4ebd95..a4f3360 100644
--- a/tests/wpt_data/conformance/sub.json
+++ b/tests/wpt_data/conformance/sub.json
@@ -1,7 +1,7 @@
 {
   "operation": "sub",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/sub.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/tanh.json b/tests/wpt_data/conformance/tanh.json
index f2726ac..dc6faa2 100644
--- a/tests/wpt_data/conformance/tanh.json
+++ b/tests/wpt_data/conformance/tanh.json
@@ -1,7 +1,7 @@
 {
   "operation": "tanh",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/tanh.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [
diff --git a/tests/wpt_data/conformance/transpose.json b/tests/wpt_data/conformance/transpose.json
index c5b1151..392609c 100644
--- a/tests/wpt_data/conformance/transpose.json
+++ b/tests/wpt_data/conformance/transpose.json
@@ -1,7 +1,7 @@
 {
   "operation": "transpose",
-  "wpt_version": "2025-12-13",
-  "wpt_commit": "555200215767c4460e2e11f663a45f9f11641216",
+  "wpt_version": "2026-02-16",
+  "wpt_commit": "2c4fe5065d91a8cf0210c6ec9d45a27bdc1d1073",
   "source_file": "webnn/conformance_tests/transpose.https.any.js",
   "conversion_note": "This file was auto-generated from WPT JavaScript tests. Manual verification recommended. Some test cases may require manual conversion from JavaScript syntax.",
   "tests": [

From 59c95e349258ca2b869b35cbd9e4aa064b0f6216 Mon Sep 17 00:00:00 2001
From: Markus Tavenrath <matavenrath@nvidia.com>
Date: Thu, 12 Mar 2026 17:47:34 +0100
Subject: [PATCH 05/10] Fix integer related issues.

---
 examples/python_simple.py   |  1 +
 src/python/context.rs       | 29 ++++++++++++++++++
 src/python/graph_builder.rs | 61 +++++++++++++++++++++----------------
 3 files changed, 65 insertions(+), 26 deletions(-)

diff --git a/examples/python_simple.py b/examples/python_simple.py
index a1606e5..39f6057 100644
--- a/examples/python_simple.py
+++ b/examples/python_simple.py
@@ -37,6 +37,7 @@ def main():
 
     # Add operation
     sum_result = builder.add(x, y)
+    builder.gather(x,y, axis=-1)
     print(f"  x + y: {sum_result}")
 
     # ReLU activation
diff --git a/src/python/context.rs b/src/python/context.rs
index 3e28952..c20bfe3 100644
--- a/src/python/context.rs
+++ b/src/python/context.rs
@@ -124,6 +124,35 @@ impl PyMLContext {
         inputs: &Bound<'_, PyDict>,
         _outputs: Option<&Bound<'_, PyDict>>,
     ) -> PyResult<Py<PyDict>> {
+        // Validate slice ops: starts/sizes length must match; empty only allowed for 0D input (no-op).
+        for (idx, op) in graph.graph_info.operations.iter().enumerate() {
+            if op.op_type.eq_ignore_ascii_case("slice") {
+                if let Some(o) = op.attributes.as_slice() {
+                    if o.starts.len() != o.sizes.len() {
+                        return Err(pyo3::exceptions::PyValueError::new_err(format!(
+                            "Slice operation at index {} has mismatched starts/sizes (starts.len()={}, sizes.len()={}).",
+                            idx, o.starts.len(), o.sizes.len()
+                        )));
+                    }
+                    let both_empty = o.starts.is_empty() && o.sizes.is_empty();
+                    if both_empty {
+                        let input_rank = op
+                            .input_operands
+                            .first()
+                            .and_then(|&id| graph.graph_info.operand(id))
+                            .map(|operand| operand.descriptor.static_or_max_shape().len())
+                            .unwrap_or(usize::MAX);
+                        if input_rank != 0 {
+                            return Err(pyo3::exceptions::PyValueError::new_err(format!(
+                                "Slice operation at index {} has empty starts/sizes but input rank is {} (only 0D no-op slice may have empty starts/sizes).",
+                                idx, input_rank
+                            )));
+                        }
+                    }
+                }
+            }
+        }
+
         // Route to appropriate backend based on context's backend selection
         match self.backend {
             Backend::OnnxCpu | Backend::OnnxGpu => self.compute_onnx(py, graph, inputs),
diff --git a/src/python/graph_builder.rs b/src/python/graph_builder.rs
index 1b04f63..03f023c 100644
--- a/src/python/graph_builder.rs
+++ b/src/python/graph_builder.rs
@@ -941,7 +941,7 @@ impl PyMLGraphBuilder {
         scale: Option<&PyMLOperand>,
         bias: Option<&PyMLOperand>,
         epsilon: f32,
-        axis: i32,
+        axis: u32,
     ) -> PyResult<PyMLOperand> {
         use rustnn::shape_inference::infer_batch_normalization_shape;
 
@@ -972,7 +972,7 @@ impl PyMLGraphBuilder {
             label: String::new(),
             scale: scale.map(|s| s.id),
             bias: bias.map(|b| b.id),
-            axis: axis as u32,
+            axis,
             epsilon: epsilon as f64,
         });
 
@@ -1078,7 +1078,7 @@ impl PyMLGraphBuilder {
         scale: Option<&PyMLOperand>,
         bias: Option<&PyMLOperand>,
         epsilon: f32,
-        axes: Option<Vec<i32>>,
+        axes: Option<Vec<u32>>,
     ) -> PyResult<PyMLOperand> {
         use rustnn::shape_inference::infer_layer_normalization_shape;
 
@@ -1107,7 +1107,7 @@ impl PyMLGraphBuilder {
 
         // When axes are omitted, infer them from scale/bias rank so ONNX axis aligns
         // with X.shape[axis:] for broadcast-compatible operands.
-        let norm_axes = if let Some(axes) = axes {
+        let norm_axes: Vec<u32> = if let Some(axes) = axes {
             axes
         } else {
             let input_rank = input.descriptor.static_or_max_shape().len();
@@ -1116,32 +1116,20 @@ impl PyMLGraphBuilder {
                 .or_else(|| bias.map(|b| b.descriptor.static_or_max_shape().len()));
 
             match param_rank {
-                Some(rank) if rank > 0 && rank <= input_rank => ((input_rank - rank)..input_rank)
-                    .map(|i| i as i32)
-                    .collect(),
-                _ => vec![-1],
+                Some(rank) if rank > 0 && rank <= input_rank => {
+                    ((input_rank - rank)..input_rank).map(|i| i as u32).collect()
+                }
+                _ => vec![(input_rank.saturating_sub(1)) as u32],
             }
         };
 
-        let input_rank = input.descriptor.static_or_max_shape().len();
         let attributes = OperatorOptions::LayerNormalization(MLLayerNormalizationOptions {
             label: String::new(),
             scale: scale.map(|s| s.id),
             bias: bias.map(|b| b.id),
             has_scale: Some(scale.is_some()),
             has_bias: Some(bias.is_some()),
-            axes: Some(
-                norm_axes
-                    .iter()
-                    .map(|&x| {
-                        if x >= 0 {
-                            x as u32
-                        } else {
-                            (input_rank as i32 + x) as u32
-                        }
-                    })
-                    .collect(),
-            ),
+            axes: Some(norm_axes),
             epsilon: epsilon as f64,
         });
 
@@ -2212,10 +2200,31 @@ impl PyMLGraphBuilder {
     ) -> PyResult<PyMLOperand> {
         use rustnn::shape_inference::infer_slice_shape;
 
-        // Infer output shape
-        let output_shape =
+        let input_rank = input.descriptor.static_or_max_shape().len();
+        if starts.len() != sizes.len() {
+            return Err(pyo3::exceptions::PyValueError::new_err(format!(
+                "slice() requires starts.len() == sizes.len() (got {} and {})",
+                starts.len(),
+                sizes.len()
+            )));
+        }
+        // WebNN: for 0D input, starts and sizes must be length 0 (empty); that is a valid no-op.
+        if starts.is_empty() || sizes.is_empty() {
+            if input_rank != 0 {
+                return Err(pyo3::exceptions::PyValueError::new_err(
+                    "slice() requires non-empty starts and sizes when input rank is not 0",
+                ));
+            }
+            // 0D no-op: output shape is same as input
+        }
+
+        // Infer output shape (for 0D with empty starts/sizes, use input shape; else infer)
+        let output_shape = if input_rank == 0 && starts.is_empty() {
+            input.descriptor.static_or_max_shape()
+        } else {
             infer_slice_shape(&input.descriptor.static_or_max_shape(), &starts, &sizes)
-                .map_err(|e| pyo3::exceptions::PyValueError::new_err(e.to_string()))?;
+                .map_err(|e| pyo3::exceptions::PyValueError::new_err(e.to_string()))?
+        };
 
         let output_descriptor = OperandDescriptor {
             data_type: input.descriptor.data_type,
@@ -3054,7 +3063,7 @@ impl PyMLGraphBuilder {
         input: &PyMLOperand,
         indices: &PyMLOperand,
         updates: &PyMLOperand,
-        axis: i32,
+        axis: u32,
     ) -> PyResult<PyMLOperand> {
         use rustnn::shape_inference::infer_scatter_elements_shape;
 
@@ -3077,7 +3086,7 @@ impl PyMLGraphBuilder {
 
         let attributes = OperatorOptions::ScatterElements(MLScatterOptions {
             label: String::new(),
-            axis: axis as u32,
+            axis,
         });
 
         let operation = Operation {

From 5e0ac01d69b088a3dc54e35f191a5ab616733cae Mon Sep 17 00:00:00 2001
From: Markus Tavenrath <matavenrath@nvidia.com>
Date: Thu, 12 Mar 2026 17:51:04 +0100
Subject: [PATCH 06/10] cargo fmt

---
 src/python/graph_builder.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/python/graph_builder.rs b/src/python/graph_builder.rs
index 03f023c..b16b496 100644
--- a/src/python/graph_builder.rs
+++ b/src/python/graph_builder.rs
@@ -1116,9 +1116,9 @@ impl PyMLGraphBuilder {
                 .or_else(|| bias.map(|b| b.descriptor.static_or_max_shape().len()));
 
             match param_rank {
-                Some(rank) if rank > 0 && rank <= input_rank => {
-                    ((input_rank - rank)..input_rank).map(|i| i as u32).collect()
-                }
+                Some(rank) if rank > 0 && rank <= input_rank => ((input_rank - rank)..input_rank)
+                    .map(|i| i as u32)
+                    .collect(),
                 _ => vec![(input_rank.saturating_sub(1)) as u32],
             }
         };

From 0e33111a91eba0cb9544cc745b8299809b4ab5c1 Mon Sep 17 00:00:00 2001
From: Markus Tavenrath <matavenrath@nvidia.com>
Date: Fri, 13 Mar 2026 08:23:12 +0100
Subject: [PATCH 07/10] remove stray debug code line

---
 examples/python_simple.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/examples/python_simple.py b/examples/python_simple.py
index 39f6057..a1606e5 100644
--- a/examples/python_simple.py
+++ b/examples/python_simple.py
@@ -37,7 +37,6 @@ def main():
 
     # Add operation
     sum_result = builder.add(x, y)
-    builder.gather(x,y, axis=-1)
     print(f"  x + y: {sum_result}")
 
     # ReLU activation

From b1526a06ad16617f385031c02a99e562fd96de8d Mon Sep 17 00:00:00 2001
From: Tarek Ziade <tarek@ziade.org>
Date: Sat, 14 Mar 2026 10:48:37 +0100
Subject: [PATCH 08/10] fix fmt

---
 src/python/graph_builder.rs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/python/graph_builder.rs b/src/python/graph_builder.rs
index b16b496..d336a4d 100644
--- a/src/python/graph_builder.rs
+++ b/src/python/graph_builder.rs
@@ -2209,14 +2209,13 @@ impl PyMLGraphBuilder {
             )));
         }
         // WebNN: for 0D input, starts and sizes must be length 0 (empty); that is a valid no-op.
-        if starts.is_empty() || sizes.is_empty() {
-            if input_rank != 0 {
+        if (starts.is_empty() || sizes.is_empty())
+            && input_rank != 0 {
                 return Err(pyo3::exceptions::PyValueError::new_err(
                     "slice() requires non-empty starts and sizes when input rank is not 0",
                 ));
             }
             // 0D no-op: output shape is same as input
-        }
 
         // Infer output shape (for 0D with empty starts/sizes, use input shape; else infer)
         let output_shape = if input_rank == 0 && starts.is_empty() {

From a38125bf2d5f66329cc28c93df74c4f3da436fb4 Mon Sep 17 00:00:00 2001
From: Tarek Ziade <tarek@ziade.org>
Date: Sat, 14 Mar 2026 10:50:57 +0100
Subject: [PATCH 09/10] make sure we udpate before build in CI

---
 .github/workflows/test.yml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cc9f764..8166a6f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -46,6 +46,9 @@ jobs:
           choco install protoc -y
           protoc --version
 
+      - name: Update Rust dependencies
+        run: cargo update
+
       - name: Cache cargo registry
         uses: actions/cache@v4
         with:
@@ -110,6 +113,9 @@ jobs:
           sudo apt-get install -y protobuf-compiler
           protoc --version
 
+      - name: Update Rust dependencies
+        run: cargo update
+
       - name: Cache cargo registry
         uses: actions/cache@v4
         with:
@@ -154,6 +160,9 @@ jobs:
           sudo apt-get install -y protobuf-compiler
           protoc --version
 
+      - name: Update Rust dependencies
+        run: cargo update
+
       - name: Cache cargo registry
         uses: actions/cache@v4
         with:

From 8b25913a4fa1fbbcdeecbce8c2cc73088b95490e Mon Sep 17 00:00:00 2001
From: Tarek Ziade <tarek@ziade.org>
Date: Sat, 14 Mar 2026 11:16:32 +0100
Subject: [PATCH 10/10] fix softmax

---
 docs/api-reference.md                |  4 +-
 docs/examples.md                     |  2 +-
 examples/image_classification.py     |  2 +-
 examples/mobilenetv2_complete.py     |  2 +-
 examples/mobilenetv2_real.py         |  2 +-
 examples/text_generation_enhanced.py |  2 +-
 examples/text_generation_gpt.py      |  2 +-
 python/webnn/__init__.pyi            |  2 +-
 src/python/graph_builder.rs          | 70 +++++++++++++++++++++++-----
 tests/test_python_api.py             | 17 +++++--
 tests/test_wpt_conformance.py        |  9 ++--
 11 files changed, 86 insertions(+), 28 deletions(-)

diff --git a/docs/api-reference.md b/docs/api-reference.md
index 3cd2554..dc13b4d 100644
--- a/docs/api-reference.md
+++ b/docs/api-reference.md
@@ -1033,7 +1033,7 @@ Sigmoid activation: `1 / (1 + exp(-x))`
 
 Hyperbolic tangent activation
 
-#### `softmax(x)`
+#### `softmax(x, axis)`
 
 Softmax activation (normalizes to probability distribution)
 
@@ -1045,7 +1045,7 @@ x = builder.input("x", [1, 10], "float32")
 relu_out = builder.relu(x)
 sigmoid_out = builder.sigmoid(x)
 tanh_out = builder.tanh(x)
-softmax_out = builder.softmax(x)
+softmax_out = builder.softmax(x, axis=1)
 ```
 
 ### Shape Operations
diff --git a/docs/examples.md b/docs/examples.md
index 13a7806..28c4c3e 100644
--- a/docs/examples.md
+++ b/docs/examples.md
@@ -413,7 +413,7 @@ class SimpleClassifier:
         logits = builder.add(logits, b2)
 
         # Softmax
-        output = builder.softmax(logits)
+        output = builder.softmax(logits, axis=len(logits.shape) - 1)
 
         # Build
         self.graph = builder.build({"probabilities": output})
diff --git a/examples/image_classification.py b/examples/image_classification.py
index b11df23..d0fa4e8 100644
--- a/examples/image_classification.py
+++ b/examples/image_classification.py
@@ -159,7 +159,7 @@ def build_simple_classifier(builder, num_classes=1000):
     logits = builder.gemm(flattened, fc_weights, b_transpose=True)
 
     # Softmax for class probabilities
-    output = builder.softmax(logits)
+    output = builder.softmax(logits, axis=len(logits.shape) - 1)
 
     return output
 
diff --git a/examples/mobilenetv2_complete.py b/examples/mobilenetv2_complete.py
index d49c5e8..94d122e 100644
--- a/examples/mobilenetv2_complete.py
+++ b/examples/mobilenetv2_complete.py
@@ -216,7 +216,7 @@ def build_complete_mobilenetv2(builder, weights):
     x = builder.add(x, fc_b)
 
     # Softmax
-    output = builder.softmax(x)
+    output = builder.softmax(x, axis=len(x.shape) - 1)
 
     print("   ✓ Complete MobileNetV2 graph built!")
     return output
diff --git a/examples/mobilenetv2_real.py b/examples/mobilenetv2_real.py
index 8b7afc0..05aad97 100644
--- a/examples/mobilenetv2_real.py
+++ b/examples/mobilenetv2_real.py
@@ -197,7 +197,7 @@ def build_mobilenetv2_simple(builder, weights):
         x = builder.add(x, fc_bias)
 
     # Softmax
-    output = builder.softmax(x)
+    output = builder.softmax(x, axis=len(x.shape) - 1)
 
     return output
 
diff --git a/examples/text_generation_enhanced.py b/examples/text_generation_enhanced.py
index dab6fe7..ec96e5c 100644
--- a/examples/text_generation_enhanced.py
+++ b/examples/text_generation_enhanced.py
@@ -213,7 +213,7 @@ def build_graph_with_kv(self, builder, x_input, cached_k, cached_v):
         # Output projection
         logits = builder.gemm(out, W_out)
         logits = builder.add(logits, b_out)
-        probs = builder.softmax(logits)
+        probs = builder.softmax(logits, axis=len(logits.shape) - 1)
 
         # Note: new_k and new_v are returned separately for caching
         return probs  # In full implementation, return (new_k, new_v, probs)
diff --git a/examples/text_generation_gpt.py b/examples/text_generation_gpt.py
index d3a87c1..61b9ae6 100644
--- a/examples/text_generation_gpt.py
+++ b/examples/text_generation_gpt.py
@@ -167,7 +167,7 @@ def build_graph(self, builder, x_input):
         logits = builder.add(logits, b_out)
 
         # Apply softmax to get probabilities
-        probs = builder.softmax(logits)
+        probs = builder.softmax(logits, axis=len(logits.shape) - 1)
 
         return probs
 
diff --git a/python/webnn/__init__.pyi b/python/webnn/__init__.pyi
index baf4602..56f76ab 100644
--- a/python/webnn/__init__.pyi
+++ b/python/webnn/__init__.pyi
@@ -305,7 +305,7 @@ class MLGraphBuilder:
         """Tanh activation"""
         ...
 
-    def softmax(self, x: MLOperand) -> MLOperand:
+    def softmax(self, x: MLOperand, axis: int) -> MLOperand:
         """Softmax activation"""
         ...
 
diff --git a/src/python/graph_builder.rs b/src/python/graph_builder.rs
index d336a4d..02faea9 100644
--- a/src/python/graph_builder.rs
+++ b/src/python/graph_builder.rs
@@ -20,8 +20,8 @@ use rustnn::operator_options::{
     MLExpandOptions, MLGatherOptions, MLGemmOptions, MLHardSigmoidOptions, MLHardSwishOptions,
     MLInstanceNormalizationOptions, MLLayerNormalizationOptions, MLLeakyReluOptions, MLPadOptions,
     MLPool2dOptions, MLReduceOptions, MLReshapeOptions, MLScatterOptions, MLSliceOptions,
-    MLSplitOptions, MLSqueezeOptions, MLTileOptions, MLTransposeOptions, MLTriangularOptions,
-    MLUnsqueezeOptions, OperatorOptions,
+    MLSoftmaxOptions, MLSplitOptions, MLSqueezeOptions, MLTileOptions, MLTransposeOptions,
+    MLTriangularOptions, MLUnsqueezeOptions, OperatorOptions,
 };
 use rustnn::shape_inference::{broadcast_shapes, infer_matmul_shape, validate_reshape};
 use rustnn::validator::GraphValidator;
@@ -1175,8 +1175,57 @@ impl PyMLGraphBuilder {
     }
 
     /// Softmax activation
-    fn softmax(&mut self, x: &PyMLOperand) -> PyResult<PyMLOperand> {
-        self.unary_op("softmax", x)
+    ///
+    /// Args:
+    ///     x: Input operand
+    ///     axis: Axis along which to normalize
+    ///
+    /// Returns:
+    ///     MLOperand: Output operand with the same shape as input
+    fn softmax(&mut self, x: &PyMLOperand, axis: u32) -> PyResult<PyMLOperand> {
+        let rank = x.descriptor.static_or_max_shape().len() as u32;
+        if rank == 0 {
+            return Err(pyo3::exceptions::PyValueError::new_err(
+                "softmax input must have rank at least 1",
+            ));
+        }
+        if axis >= rank {
+            return Err(pyo3::exceptions::PyValueError::new_err(format!(
+                "Axis {} out of bounds for rank {}",
+                axis, rank
+            )));
+        }
+
+        let output_descriptor = x.descriptor.clone();
+
+        let output_id = self.next_operand_id;
+        self.next_operand_id += 1;
+
+        let operation = Operation {
+            op_type: "softmax".to_string(),
+            input_operands: vec![x.id],
+            output_operand: Some(output_id),
+            output_operands: Vec::new(),
+            attributes: OperatorOptions::Softmax(MLSoftmaxOptions {
+                label: String::new(),
+                axis,
+            }),
+            label: None,
+        };
+
+        self.operations.push(operation);
+
+        let output_operand = Operand {
+            descriptor: output_descriptor.clone(),
+            kind: OperandKind::Output,
+            name: None,
+        };
+        self.operands.push(output_operand);
+
+        let py_operand = PyMLOperand::new(output_id, output_descriptor, OperandKind::Output, None);
+        self.operand_map.insert(output_id, py_operand.clone());
+
+        Ok(py_operand)
     }
 
     // Element-wise operations - Basic math
@@ -2209,13 +2258,12 @@ impl PyMLGraphBuilder {
             )));
         }
         // WebNN: for 0D input, starts and sizes must be length 0 (empty); that is a valid no-op.
-        if (starts.is_empty() || sizes.is_empty())
-            && input_rank != 0 {
-                return Err(pyo3::exceptions::PyValueError::new_err(
-                    "slice() requires non-empty starts and sizes when input rank is not 0",
-                ));
-            }
-            // 0D no-op: output shape is same as input
+        if (starts.is_empty() || sizes.is_empty()) && input_rank != 0 {
+            return Err(pyo3::exceptions::PyValueError::new_err(
+                "slice() requires non-empty starts and sizes when input rank is not 0",
+            ));
+        }
+        // 0D no-op: output shape is same as input
 
         // Infer output shape (for 0D with empty starts/sizes, use input shape; else infer)
         let output_shape = if input_rank == 0 && starts.is_empty() {
diff --git a/tests/test_python_api.py b/tests/test_python_api.py
index 77bfaa6..4f34838 100644
--- a/tests/test_python_api.py
+++ b/tests/test_python_api.py
@@ -142,7 +142,7 @@ def test_unary_operations(builder):
     assert tanh_out.shape == [2, 3]
 
     # Test softmax
-    softmax_out = builder.softmax(x)
+    softmax_out = builder.softmax(x, axis=1)
     assert softmax_out.shape == [2, 3]
 
 
@@ -154,6 +154,13 @@ def test_reshape_operation(builder):
     assert reshaped.data_type == "float32"
 
 
+def test_softmax_invalid_axis(builder):
+    """Test softmax rejects axes outside the input rank."""
+    x = builder.input("x", [2, 3], "float32")
+    with pytest.raises(ValueError, match="Axis 2 out of bounds for rank 2"):
+        builder.softmax(x, axis=2)
+
+
 def test_matmul_operation(builder):
     """Test matrix multiplication"""
     a = builder.input("a", [2, 3], "float32")
@@ -323,7 +330,7 @@ def test_tanh_computation(context, builder):
 def test_softmax_computation(context, builder):
     """Test softmax activation with actual computation"""
     x = builder.input("x", [2, 3], "float32")
-    y = builder.softmax(x)
+    y = builder.softmax(x, axis=1)
     graph = builder.build({"y": y})
 
     x_data = np.array([[1, 2, 3], [4, 5, 6]], dtype=np.float32)
@@ -335,7 +342,11 @@ def test_softmax_computation(context, builder):
     # Verify softmax output is in [0, 1] and sums to 1
     assert np.all(results["y"] >= 0)
     assert np.all(results["y"] <= 1)
-    # Note: Softmax normalization depends on axis, so we just check properties
+    np.testing.assert_allclose(results["y"].sum(axis=1), np.ones(2, dtype=np.float32), rtol=1e-5)
+
+    shifted = x_data - np.max(x_data, axis=1, keepdims=True)
+    expected = np.exp(shifted) / np.sum(np.exp(shifted), axis=1, keepdims=True)
+    np.testing.assert_allclose(results["y"], expected, rtol=1e-5)
 
 
 # ============================================================================
diff --git a/tests/test_wpt_conformance.py b/tests/test_wpt_conformance.py
index de6c6dd..3946529 100644
--- a/tests/test_wpt_conformance.py
+++ b/tests/test_wpt_conformance.py
@@ -255,14 +255,13 @@ def call_builder_method(builder, op_name: str, args: Dict[str, Any]) -> Any:
         return method(input_op, new_shape)
 
     elif op_name == "softmax":
-        # softmax(input, axis=None)
+        # softmax(input, axis)
         input_op = args.get("input", args.get("x"))
         axis = args.get("axis")
         method = getattr(builder, "softmax")
-        if axis is not None:
-            # axis parameter not yet supported, skip for now
-            raise NotImplementedError(f"softmax with axis={axis} not yet supported")
-        return method(input_op)
+        if axis is None:
+            raise ValueError("softmax requires an axis")
+        return method(input_op, axis)
 
     # Map operation names to builder method names (WPT uses camelCase)
     method_name_map = {