Update app.py

app.py

@@ -46,7 +46,7 @@ def query_gpt(api_key, llava_med_result, user_question, model="gpt-4o"):
     response = openai.chat.completions.create(
         model=model,
         messages=[{"role": "user", "content": prompt}],
-        max_tokens=512
+        max_tokens=256
     )
     return response.choices[0].message.content