diff --git a/.github/workflows/rust-release-windows.yml b/.github/workflows/rust-release-windows.yml
index 033027f5e2..fd411715be 100644
--- a/.github/workflows/rust-release-windows.yml
+++ b/.github/workflows/rust-release-windows.yml
@@ -89,7 +89,14 @@ jobs:
       - name: Cargo build (Windows binaries)
         shell: bash
         run: |
-          cargo build --target ${{ matrix.target }} --release ${{ matrix.build_args }}
+          cargo build --target ${{ matrix.target }} --release --timings ${{ matrix.build_args }}
+
+      - name: Upload Cargo timings
+        uses: actions/upload-artifact@v6
+        with:
+          name: cargo-timings-rust-release-windows-${{ matrix.target }}-${{ matrix.bundle }}
+          path: codex-rs/target/**/cargo-timings/cargo-timing.html
+          if-no-files-found: warn
 
       - name: Stage Windows binaries
         shell: bash
diff --git a/.github/workflows/rust-release.yml b/.github/workflows/rust-release.yml
index 5e0d7f9ac9..cfe3a05a07 100644
--- a/.github/workflows/rust-release.yml
+++ b/.github/workflows/rust-release.yml
@@ -206,7 +206,14 @@ jobs:
       - name: Cargo build
         shell: bash
         run: |
-          cargo build --target ${{ matrix.target }} --release --bin codex --bin codex-responses-api-proxy
+          cargo build --target ${{ matrix.target }} --release --timings --bin codex --bin codex-responses-api-proxy
+
+      - name: Upload Cargo timings
+        uses: actions/upload-artifact@v6
+        with:
+          name: cargo-timings-rust-release-${{ matrix.target }}
+          path: codex-rs/target/**/cargo-timings/cargo-timing.html
+          if-no-files-found: warn
 
       - if: ${{ contains(matrix.target, 'linux') }}
         name: Cosign Linux artifacts