diff --git a/.github/workflows/pr-test.yml b/.github/workflows/pr-test.yml
index 727f2e2e9..794bcce19 100644
--- a/.github/workflows/pr-test.yml
+++ b/.github/workflows/pr-test.yml
@@ -791,34 +791,34 @@ jobs:
           cd test/srt
           python3 run_suite.py --suite per-commit-8-gpu-h200-deepseek-v32
 
-  unit-test-backend-4-gpu-b200:
-    needs: [check-changes, unit-test-backend-2-gpu, sgl-kernel-build-wheels]
-    if: always() && !failure() && !cancelled() &&
-      ((needs.check-changes.outputs.main_package == 'true') || (needs.check-changes.outputs.sgl_kernel == 'true'))
-    runs-on: 4-gpu-b200
-    strategy:
-      fail-fast: false
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
+  # unit-test-backend-4-gpu-b200:
+  #   needs: [check-changes, unit-test-backend-2-gpu, sgl-kernel-build-wheels]
+  #   if: always() && !failure() && !cancelled() &&
+  #     ((needs.check-changes.outputs.main_package == 'true') || (needs.check-changes.outputs.sgl_kernel == 'true'))
+  #   runs-on: 4-gpu-b200
+  #   strategy:
+  #     fail-fast: false
+  #   steps:
+  #     - name: Checkout code
+  #       uses: actions/checkout@v4
 
-      - name: Download artifacts
-        if: needs.check-changes.outputs.sgl_kernel == 'true'
-        uses: actions/download-artifact@v4
-        with:
-          path: sgl-kernel/dist/
-          merge-multiple: true
-          pattern: wheel-python3.10-cuda12.9
+  #     - name: Download artifacts
+  #       if: needs.check-changes.outputs.sgl_kernel == 'true'
+  #       uses: actions/download-artifact@v4
+  #       with:
+  #         path: sgl-kernel/dist/
+  #         merge-multiple: true
+  #         pattern: wheel-python3.10-cuda12.9
 
-      - name: Install dependencies
-        run: |
-          CUSTOM_BUILD_SGL_KERNEL=${{needs.check-changes.outputs.sgl_kernel}} IS_BLACKWELL=1 bash scripts/ci/ci_install_dependency.sh
+  #     - name: Install dependencies
+  #       run: |
+  #         CUSTOM_BUILD_SGL_KERNEL=${{needs.check-changes.outputs.sgl_kernel}} IS_BLACKWELL=1 bash scripts/ci/ci_install_dependency.sh
 
-      - name: Run test
-        timeout-minutes: 45
-        run: |
-          cd test/srt
-          python3 run_suite.py --suite per-commit-4-gpu-b200 --auto-partition-id 0 --auto-partition-size 1 --timeout-per-file 3600
+  #     - name: Run test
+  #       timeout-minutes: 45
+  #       run: |
+  #         cd test/srt
+  #         python3 run_suite.py --suite per-commit-4-gpu-b200 --auto-partition-id 0 --auto-partition-size 1 --timeout-per-file 3600
 
   unit-test-backend-4-gpu-gb200:
     needs: [check-changes, sgl-kernel-build-wheels-arm]
@@ -872,7 +872,7 @@ jobs:
         accuracy-test-2-gpu,
         unit-test-deepep-4-gpu,
         unit-test-deepep-8-gpu,
-        unit-test-backend-4-gpu-b200,
+        # unit-test-backend-4-gpu-b200,
         unit-test-backend-4-gpu-gb200,
       ]
     if: always()