diff --git a/.github/workflows/release-docs.yml b/.github/workflows/release-docs.yml
index 1af140e5509..cb92a27fbdb 100644
--- a/.github/workflows/release-docs.yml
+++ b/.github/workflows/release-docs.yml
@@ -49,6 +49,7 @@ jobs:
           make compile
 
           make html
+          python3 wrap_run_llm.py
           cd _build/html
 
           git clone https://$GITHUB_TOKEN@github.com/sgl-project/sgl-project.github.io.git ../sgl-project.github.io --depth 1
diff --git a/docs/wrap_run_llm.py b/docs/wrap_run_llm.py
new file mode 100644
index 00000000000..0d0fe8b250a
--- /dev/null
+++ b/docs/wrap_run_llm.py
@@ -0,0 +1,40 @@
+import os
+import re
+
+
+def insert_runllm_widget(html_content):
+    # RunLLM Widget script to be inserted
+    widget_script = """
+    <!-- RunLLM Widget Script -->
+    <script type="module" id="runllm-widget-script" src="https://widget.runllm.com" crossorigin="true" version="stable" runllm-keyboard-shortcut="Mod+j" runllm-name="SGLang Chatbot" runllm-position="BOTTOM_RIGHT" runllm-assistant-id="629" async></script>
+    """
+
+    # Find the closing body tag and insert the widget script before it
+    return re.sub(r"</body>", f"{widget_script}\n</body>", html_content)
+
+
+def main():
+    # Get the build directory path
+    build_dir = os.path.join(
+        os.path.dirname(os.path.abspath(__file__)), "_build", "html"
+    )
+    index_file = os.path.join(build_dir, "index.html")
+
+    # Process only index.html
+    if os.path.exists(index_file):
+        # Read the HTML file
+        with open(index_file, "r", encoding="utf-8") as f:
+            content = f.read()
+
+        # Insert the RunLLM widget
+        modified_content = insert_runllm_widget(content)
+
+        # Write back the modified content
+        with open(index_file, "w", encoding="utf-8") as f:
+            f.write(modified_content)
+    else:
+        print(f"Index file not found: {index_file}")
+
+
+if __name__ == "__main__":
+    main()