diff --git a/packages/sdk/ts/src/__tests__/video-models.test.ts b/packages/sdk/ts/src/__tests__/video-models.test.ts
new file mode 100644
index 000000000..2b04c5b7f
--- /dev/null
+++ b/packages/sdk/ts/src/__tests__/video-models.test.ts
@@ -0,0 +1,34 @@
+import { VertexAIVideoModels } from '../supported-models/video/vertex-ai';
+
+describe('Vertex AI video models', () => {
+  it('includes Veo 3.1 model variants', () => {
+    const modelIds = VertexAIVideoModels.map(model => model.model_id);
+
+    expect(modelIds).toContain('veo-3.1-fast-generate-001');
+    expect(modelIds).toContain('veo-3.1-generate-001');
+    expect(modelIds).toContain('veo-3.1-fast-generate-preview');
+    expect(modelIds).toContain('veo-3.1-generate-preview');
+  });
+
+  it('uses current Veo 3.1 Vertex AI pricing', () => {
+    expect(
+      VertexAIVideoModels.find(
+        model => model.model_id === 'veo-3.1-fast-generate-001'
+      )
+    ).toMatchObject({
+      cost_per_second_with_audio: 0.12,
+      cost_per_second_without_audio: 0.1,
+      provider: 'VertexAI',
+    });
+
+    expect(
+      VertexAIVideoModels.find(
+        model => model.model_id === 'veo-3.1-generate-001'
+      )
+    ).toMatchObject({
+      cost_per_second_with_audio: 0.4,
+      cost_per_second_without_audio: 0.2,
+      provider: 'VertexAI',
+    });
+  });
+});
diff --git a/packages/sdk/ts/src/supported-models/video/vertex-ai.ts b/packages/sdk/ts/src/supported-models/video/vertex-ai.ts
index 82a9d6191..8f251556c 100644
--- a/packages/sdk/ts/src/supported-models/video/vertex-ai.ts
+++ b/packages/sdk/ts/src/supported-models/video/vertex-ai.ts
@@ -1,16 +1,46 @@
 import type { SupportedVideoModel } from '../types';
 
 export type VertexAIVideoModel =
+  | 'veo-3.1-fast-generate-001'
+  | 'veo-3.1-generate-001'
+  | 'veo-3.1-fast-generate-preview'
+  | 'veo-3.1-generate-preview'
   | 'veo-3.0-fast-generate-preview'
   | 'veo-3.0-generate-preview';
 /**
  * Vertex AI video models with official pricing information
  * Based on: https://cloud.google.com/vertex-ai/generative-ai/pricing
  *
+ * Veo 3.1: $0.40/second with audio, $0.20/second video only
+ * Veo 3.1 Fast: $0.10-$0.12/second with audio, $0.08-$0.10/second video only
  * Veo 3: $0.40/second with audio, $0.20/second video only
  * Veo 3 Fast: $0.15/second with audio, $0.10/second video only
  */
 export const VertexAIVideoModels: SupportedVideoModel[] = [
+  {
+    model_id: 'veo-3.1-fast-generate-001',
+    cost_per_second_with_audio: 0.12,
+    cost_per_second_without_audio: 0.1,
+    provider: 'VertexAI',
+  },
+  {
+    model_id: 'veo-3.1-generate-001',
+    cost_per_second_with_audio: 0.4,
+    cost_per_second_without_audio: 0.2,
+    provider: 'VertexAI',
+  },
+  {
+    model_id: 'veo-3.1-fast-generate-preview',
+    cost_per_second_with_audio: 0.12,
+    cost_per_second_without_audio: 0.1,
+    provider: 'VertexAI',
+  },
+  {
+    model_id: 'veo-3.1-generate-preview',
+    cost_per_second_with_audio: 0.4,
+    cost_per_second_without_audio: 0.2,
+    provider: 'VertexAI',
+  },
   {
     model_id: 'veo-3.0-fast-generate-preview',
     cost_per_second_with_audio: 0.15,
diff --git a/templates/next-video-template/src/app/api/generate-video/validation.ts b/templates/next-video-template/src/app/api/generate-video/validation.ts
index 669dfd410..105cac8ea 100644
--- a/templates/next-video-template/src/app/api/generate-video/validation.ts
+++ b/templates/next-video-template/src/app/api/generate-video/validation.ts
@@ -35,6 +35,10 @@ export function validateGenerateVideoRequest(body: unknown): ValidationResult {
   }
 
   const validModels: VideoModelOption[] = [
+    'veo-3.1-fast-generate-001',
+    'veo-3.1-generate-001',
+    'veo-3.1-fast-generate-preview',
+    'veo-3.1-generate-preview',
     'veo-3.0-fast-generate-preview',
     'veo-3.0-generate-preview',
   ];
diff --git a/templates/next-video-template/src/app/api/generate-video/vertex.ts b/templates/next-video-template/src/app/api/generate-video/vertex.ts
index 66d1d4e8d..5d102de2c 100644
--- a/templates/next-video-template/src/app/api/generate-video/vertex.ts
+++ b/templates/next-video-template/src/app/api/generate-video/vertex.ts
@@ -4,6 +4,7 @@
 
 import { getEchoToken } from '@/echo';
 import { ERROR_MESSAGES } from '@/lib/constants';
+import type { VideoModelOption } from '@/lib/types';
 import {
   GenerateVideosOperation,
   GenerateVideosParameters,
@@ -14,7 +15,7 @@ import {
  */
 export async function handleGeminiGenerate(
   prompt: string,
-  model: 'veo-3.0-fast-generate-preview' | 'veo-3.0-generate-preview',
+  model: VideoModelOption,
   durationSeconds: number = 4,
   generateAudio: boolean = false,
   image?: string, // Base64 encoded image or data URL (first frame)
diff --git a/templates/next-video-template/src/components/video-generator.tsx b/templates/next-video-template/src/components/video-generator.tsx
index 1d942d1bb..b08eca816 100644
--- a/templates/next-video-template/src/components/video-generator.tsx
+++ b/templates/next-video-template/src/components/video-generator.tsx
@@ -42,6 +42,8 @@ import { FileInputManager } from './FileInputManager';
 import { VideoHistory } from './video-history';
 
 const models: VideoModelConfig[] = [
+  { id: 'veo-3.1-fast-generate-001', name: 'Veo 3.1 Fast' },
+  { id: 'veo-3.1-generate-001', name: 'Veo 3.1' },
   { id: 'veo-3.0-fast-generate-preview', name: 'Veo 3 Fast' },
   { id: 'veo-3.0-generate-preview', name: 'Veo 3' },
 ];
@@ -57,7 +59,7 @@ const models: VideoModelConfig[] = [
  */
 export default function VideoGenerator() {
   const [model, setModel] = useState<VideoModelOption>(
-    'veo-3.0-fast-generate-preview'
+    'veo-3.1-fast-generate-001'
   );
   const [durationSeconds, setDurationSeconds] = useState<4 | 6 | 8>(4);
   const [generateAudio, setGenerateAudio] = useState<boolean>(false);
diff --git a/templates/next-video-template/src/lib/types.ts b/templates/next-video-template/src/lib/types.ts
index d8e429c97..6b144b116 100644
--- a/templates/next-video-template/src/lib/types.ts
+++ b/templates/next-video-template/src/lib/types.ts
@@ -14,6 +14,10 @@ export type ModelOption = 'openai' | 'gemini';
  * Available AI models for video generation
  */
 export type VideoModelOption =
+  | 'veo-3.1-fast-generate-001'
+  | 'veo-3.1-generate-001'
+  | 'veo-3.1-fast-generate-preview'
+  | 'veo-3.1-generate-preview'
   | 'veo-3.0-fast-generate-preview'
   | 'veo-3.0-generate-preview';