diff --git a/.github/workflows/GPU.yml b/.github/workflows/GPU.yml
deleted file mode 100644
index 027f1502..00000000
--- a/.github/workflows/GPU.yml
+++ /dev/null
@@ -1,38 +0,0 @@
-name: "GPU Tests"
-
-on:
-  pull_request:
-    branches:
-      - master
-    paths-ignore:
-      - 'docs/**'
-  push:
-    branches:
-      - master
-    paths-ignore:
-      - 'docs/**'
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: ${{ github.ref_name != github.event.repository.default_branch || github.ref != 'refs/tags/v*' }}
-
-jobs:
-  gpu-tests:
-    name: "GPU Tests"
-    runs-on: [self-hosted, Linux, X64, gpu]
-    timeout-minutes: 60
-    steps:
-      - uses: actions/checkout@v6
-      - uses: julia-actions/setup-julia@v3
-        with:
-          version: "1"
-      - uses: julia-actions/julia-buildpkg@v1
-      - uses: julia-actions/julia-runtest@v1
-        env:
-          GROUP: "GPU"
-      - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v6
-        with:
-          files: lcov.info
-          token: ${{ secrets.CODECOV_TOKEN }}
-          fail_ci_if_error: false
diff --git a/.github/workflows/Tests.yml b/.github/workflows/Tests.yml
index 554dc120..93eca998 100644
--- a/.github/workflows/Tests.yml
+++ b/.github/workflows/Tests.yml
@@ -18,20 +18,5 @@ concurrency:
 
 jobs:
   tests:
-    name: "Tests"
-    strategy:
-      fail-fast: false
-      matrix:
-        version:
-          - "1"
-          - "lts"
-          - "pre"
-        os:
-          - "ubuntu-latest"
-          - "macos-latest"
-          - "windows-latest"
-    uses: "SciML/.github/.github/workflows/tests.yml@v1"
-    with:
-      julia-version: "${{ matrix.version }}"
-      os: "${{ matrix.os }}"
+    uses: "SciML/.github/.github/workflows/grouped-tests.yml@v1"
     secrets: "inherit"
diff --git a/Project.toml b/Project.toml
index 6016219a..0d115690 100644
--- a/Project.toml
+++ b/Project.toml
@@ -29,11 +29,11 @@ ForwardDiff = "0.10.13"
 GPUArraysCore = "0.1, 0.2"
 GenericSchur = "0.5.3"
 LinearAlgebra = "1.10"
-Pkg = "1"
 PrecompileTools = "1"
 Printf = "1.10"
 Random = "1"
-SafeTestsets = "0.1"
+SafeTestsets = "0.1, 1"
+SciMLTesting = "1"
 SparseArrays = "1.10"
 StaticArrays = "1.9.8"
 Test = "1"
@@ -43,11 +43,11 @@ julia = "1.10"
 Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
 DoubleFloats = "497a8b3b-efae-58df-a0af-a86822472b78"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
-Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
+SciMLTesting = "09d9d899-5365-40a9-917a-5f67fddea283"
 StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Aqua", "DoubleFloats", "ForwardDiff", "Pkg", "Test", "SafeTestsets", "StaticArrays", "Random"]
+test = ["Aqua", "DoubleFloats", "ForwardDiff", "Test", "SafeTestsets", "SciMLTesting", "StaticArrays", "Random"]
diff --git a/test/gpu/Project.toml b/test/gpu/Project.toml
index 18ce094b..9e862ac0 100644
--- a/test/gpu/Project.toml
+++ b/test/gpu/Project.toml
@@ -1,5 +1,11 @@
 [deps]
 CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
+SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
+SciMLTesting = "09d9d899-5365-40a9-917a-5f67fddea283"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
 CUDA = "3.12, 4, 5"
+SafeTestsets = "0.1, 1"
+SciMLTesting = "1"
+Test = "1"
diff --git a/test/jet/Project.toml b/test/jet/Project.toml
deleted file mode 100644
index 0cf8f6e9..00000000
--- a/test/jet/Project.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[deps]
-JET = "c3a54625-cd67-489e-a8e7-0a5a0ff4e31b"
-Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-
-[compat]
-JET = "0.9, 0.10, 0.11"
diff --git a/test/qa.jl b/test/qa.jl
deleted file mode 100644
index cfa2c442..00000000
--- a/test/qa.jl
+++ /dev/null
@@ -1,14 +0,0 @@
-using ExponentialUtilities, Aqua
-@testset "Aqua" begin
-    Aqua.find_persistent_tasks_deps(ExponentialUtilities)
-    Aqua.test_ambiguities(ExponentialUtilities, recursive = false)
-    Aqua.test_deps_compat(
-        ExponentialUtilities,
-        ignore = [:libblastrampoline_jll]
-    )
-    Aqua.test_piracies(ExponentialUtilities)
-    Aqua.test_project_extras(ExponentialUtilities)
-    Aqua.test_stale_deps(ExponentialUtilities)
-    Aqua.test_unbound_args(ExponentialUtilities)
-    Aqua.test_undefined_exports(ExponentialUtilities)
-end
diff --git a/test/qa/Project.toml b/test/qa/Project.toml
new file mode 100644
index 00000000..1eb4dc29
--- /dev/null
+++ b/test/qa/Project.toml
@@ -0,0 +1,18 @@
+[deps]
+Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
+ExponentialUtilities = "d4d017d3-3776-5f7e-afef-a10c40355c18"
+JET = "c3a54625-cd67-489e-a8e7-0a5a0ff4e31b"
+SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
+SciMLTesting = "09d9d899-5365-40a9-917a-5f67fddea283"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[sources]
+ExponentialUtilities = {path = "../.."}
+
+[compat]
+Aqua = "0.8"
+JET = "0.9, 0.10, 0.11"
+SafeTestsets = "0.1, 1"
+SciMLTesting = "1"
+Test = "1"
+julia = "1.10"
diff --git a/test/jet/jet.jl b/test/qa/qa.jl
similarity index 68%
rename from test/jet/jet.jl
rename to test/qa/qa.jl
index fcc3a428..dcc58f5c 100644
--- a/test/jet/jet.jl
+++ b/test/qa/qa.jl
@@ -1,9 +1,20 @@
-using ExponentialUtilities, JET, Test
+using ExponentialUtilities, Aqua, JET, Test
+
+@testset "Aqua" begin
+    Aqua.find_persistent_tasks_deps(ExponentialUtilities)
+    Aqua.test_ambiguities(ExponentialUtilities, recursive = false)
+    Aqua.test_deps_compat(
+        ExponentialUtilities,
+        ignore = [:libblastrampoline_jll]
+    )
+    Aqua.test_piracies(ExponentialUtilities)
+    Aqua.test_project_extras(ExponentialUtilities)
+    Aqua.test_stale_deps(ExponentialUtilities)
+    Aqua.test_unbound_args(ExponentialUtilities)
+    Aqua.test_undefined_exports(ExponentialUtilities)
+end
 
 @testset "JET static analysis" begin
-    # Test key entry points for type stability and correctness
-    # Using report_call to check for runtime errors
-
     @testset "expv" begin
         rep = JET.report_call(expv, (Float64, Matrix{Float64}, Vector{Float64}))
         @test length(JET.get_reports(rep)) == 0
diff --git a/test/runtests.jl b/test/runtests.jl
index 68fc7ea6..80ba0993 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,34 +1,3 @@
-using Pkg
-using SafeTestsets, Test
-const LONGER_TESTS = false
+using SciMLTesting
 
-const GROUP = get(ENV, "GROUP", "All")
-
-function activate_gpu_env()
-    Pkg.activate("gpu")
-    Pkg.develop(PackageSpec(path = dirname(@__DIR__)))
-    return Pkg.instantiate()
-end
-
-function activate_jet_env()
-    Pkg.activate("jet")
-    Pkg.develop(PackageSpec(path = dirname(@__DIR__)))
-    return Pkg.instantiate()
-end
-
-@time begin
-    if GROUP == "All" || GROUP == "Core"
-        @time @safetestset "Quality Assurance" include("qa.jl")
-        @time @safetestset "Basic Tests" include("basictests.jl")
-    end
-
-    if GROUP == "GPU"
-        activate_gpu_env()
-        @time @safetestset "GPU Tests" include("gpu/gputests.jl")
-    end
-
-    if GROUP == "JET"
-        activate_jet_env()
-        @time @safetestset "JET Tests" include("jet/jet.jl")
-    end
-end
+run_tests()
diff --git a/test/test_groups.toml b/test/test_groups.toml
new file mode 100644
index 00000000..9fbb711a
--- /dev/null
+++ b/test/test_groups.toml
@@ -0,0 +1,21 @@
+# Test-group matrix for ExponentialUtilities (consumed by the reusable
+# SciML/.github grouped-tests.yml@v1 workflow via
+# scripts/compute_affected_sublibraries.jl --root-matrix).
+#
+# Core runs the functional suite (basictests.jl) on every Julia version and OS.
+# QA runs the metadata/static-analysis checks (Aqua + JET) in the isolated
+# test/qa environment.
+# GPU runs the CUDA tests in the isolated test/gpu environment on a self-hosted
+# GPU runner (matching the pre-conversion GPU.yml workflow).
+
+[Core]
+versions = ["lts", "1", "pre"]
+os = ["ubuntu-latest", "macos-latest", "windows-latest", "macOS-15-intel"]
+
+[QA]
+versions = ["lts", "1"]
+
+[GPU]
+versions = ["1"]
+runner = ["self-hosted", "Linux", "X64", "gpu"]
+timeout = 60