Update app.py

app.py

@@ -52,7 +52,7 @@ async def generate_text():
     }
 
     data = {
-        "model": "mistralai/Mistral-7B-Instruct-v0.2",
+        "model": "mwen/Qwen2.5-72B-Instruct",
         "messages": history[session_id],
         "max_tokens": 10000,
         "stream": False