Update app.py

app.py

@@ -494,7 +494,8 @@ def handsome_chat_completions():
                                                 
                                             if delta.get("content") is not None:
                                                 if not first_reasoning_chunk:
-                                                    yield f"data: {json.dumps({'choices': [{'delta': {'content': f'\n<\think>\n'}, 'index': 0}]})}\n\n"
+                                                    reasoning_chunk = f"\n<\think>\n"
+                                                    yield f"data: {json.dumps({'choices': [{'delta': {'content': reasoning_chunk}, 'index': 0}]})}\n\n"
                                                     first_reasoning_chunk = True
                                                 yield f"data: {json.dumps({'choices': [{'delta': {'content': delta["content"]}, 'index': 0}]})}\n\n"