Update chat.py

chat.py

@@ -362,7 +362,7 @@ async def chat(request: Request):
             completion_stream = hf_client.chat.completions.create(
                 model="mistralai/Mistral-7B-Instruct-v0.3",
                 messages=messages,
-                max_tokens=1024,
+                max_tokens=900,
                 temperature=0.7,
                 stream=True
             )