diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
new file mode 100644
index 000000000..56bbb45b9
--- /dev/null
+++ b/.github/workflows/benchmark.yml
@@ -0,0 +1,84 @@
+name: Benchmark
+
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  benchmark:
+    if: ${{ github.repository_owner == 'withastro' && github.event.issue.pull_request && startsWith(github.event.comment.body, '!bench') }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    outputs:
+      PR-BENCH-14: ${{ steps.benchmark-pr.outputs.BENCH_RESULT14 }}
+      PR-BENCH-16: ${{ steps.benchmark-pr.outputs.BENCH_RESULT16 }}
+      MAIN-BENCH-14: ${{ steps.benchmark-main.outputs.BENCH_RESULT14 }}
+      MAIN-BENCH-16: ${{ steps.benchmark-main.outputs.BENCH_RESULT16 }}
+    strategy:
+      matrix:
+        node-version: [14, 16]
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          persist-credentials: false
+          ref: ${{github.event.pull_request.head.sha}}
+          repository: ${{github.event.pull_request.head.repo.full_name}}
+
+      - name: Setup PNPM
+        uses: pnpm/action-setup@v2.2.1
+
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Run benchmark
+        id: benchmark-pr
+        run: |
+          pnpm run --silent benchmark > ./bench-result.md
+          result=$(awk '/requests in/' ./bench-result.md)
+          echo "::set-output name=BENCH_RESULT${{matrix.node-version}}::$result"
+
+      # main benchmark
+      - uses: actions/checkout@v3
+        with:
+          persist-credentials: false
+          ref: 'main'
+
+      - name: Install
+        run: |
+          pnpm install
+
+      - name: Run benchmark
+        id: benchmark-main
+        run: |
+          pnpm run --silent benchmark > ./bench-result.md
+          result=$(awk '/requests in/' ./bench-result.md)
+          echo "::set-output name=BENCH_RESULT${{matrix.node-version}}::$result"
+
+  output-benchmark:
+    if: ${{ github.repository_owner == 'withastro' && github.event.issue.pull_request && startsWith(github.event.comment.body, '!bench') }}
+    needs: [benchmark]
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - name: Comment PR
+        uses: thollander/actions-comment-pull-request@v1
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          message: |
+            **Node**: 14
+            **PR**: ${{ needs.benchmark.outputs.PR-BENCH-14 }}
+            **MAIN**: ${{ needs.benchmark.outputs.MAIN-BENCH-14 }}
+            
+            ---
+            
+            **Node**: 16
+            **PR**: ${{ needs.benchmark.outputs.PR-BENCH-16 }}
+            **MAIN**: ${{ needs.benchmark.outputs.MAIN-BENCH-16 }}
diff --git a/package.json b/package.json
index 66e7e3045..675d305ce 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "test:vite-ci": "turbo run test --filter=astro --output-logs=new-only --no-deps --concurrency=1",
     "test:e2e": "cd packages/astro && pnpm playwright install && pnpm run test:e2e",
     "test:e2e:match": "cd packages/astro && pnpm playwright install && pnpm run test:e2e:match",
-    "benchmark": "turbo run benchmark --filter=astro",
+    "benchmark": "pnpm --filter @benchmark/simple run build && pnpm dlx concurrently -k -s first \"node packages/astro/test/benchmark/simple/server.mjs\" \"pnpm dlx autocannon -c 100 -d 30 -p 10 localhost:3002/\"",
     "lint": "eslint .",
     "version": "changeset version && pnpm install --no-frozen-lockfile && pnpm run format"
   },