Update app.py

app.py

@@ -171,10 +171,10 @@ async def try_openai_api(openai_messages):
     """
     try:
         stream = openai_client.chat.completions.create(
-            model="gpt-4o",
+            model="o3",
             messages=openai_messages,
             stream=True,
-            max_tokens=4096,
+            max_tokens=8000,
             temperature=0.7
         )
         collected_content = ""