diff --git a/.github/workflows/bazel_linux.yml b/.github/workflows/bazel_linux.yml
index 49d2f96cb0..7b23fb2371 100644
--- a/.github/workflows/bazel_linux.yml
+++ b/.github/workflows/bazel_linux.yml
@@ -26,6 +26,6 @@ jobs:
           sudo apt-get install bazel
           bazel --version
       - name: Build
-        run: bazel build --cxxopt=-std=c++20 //ortools/... //examples/...
+        run: bazel build -c opt --cxxopt=-std=c++20 //ortools/... //examples/...
       - name: Test
-        run: bazel test --cxxopt=-std=c++20 //ortools/... //examples/...
+        run: bazel test -c opt --cxxopt=-std=c++20 --test_output=errors //ortools/... //examples/...
diff --git a/.github/workflows/bazel_macos.yml b/.github/workflows/bazel_macos.yml
index 18df7bebe6..d1553090d9 100644
--- a/.github/workflows/bazel_macos.yml
+++ b/.github/workflows/bazel_macos.yml
@@ -19,6 +19,6 @@ jobs:
           #brew install bazel
           bazel --version
       - name: Build
-        run: bazel build --cxxopt=-std=c++20 //ortools/... //examples/...
+        run: bazel build -c opt --cxxopt=-std=c++20 //ortools/... //examples/...
       - name: Test
-        run: bazel test --cxxopt=-std=c++20 //ortools/... //examples/...
+        run: bazel test -c opt --cxxopt=-std=c++20 --test_output=errors //ortools/... //examples/...
diff --git a/.github/workflows/bazel_windows.yml b/.github/workflows/bazel_windows.yml
index 1353498649..8f1a692678 100644
--- a/.github/workflows/bazel_windows.yml
+++ b/.github/workflows/bazel_windows.yml
@@ -18,6 +18,6 @@ jobs:
           choco install bazel
           bazel --version
       - name: Build
-        run: bazel build --cxxopt="-std:c++20" //ortools/... //examples/...
+        run: bazel build -c opt --cxxopt="-std:c++20" //ortools/... //examples/...
       - name: Test
-        run: bazel test --cxxopt="-std:c++20" //ortools/... //examples/...
+        run: bazel test -c opt --cxxopt="-std:c++20" --test_output=errors //ortools/... //examples/...