Update app.py

app.py

@@ -99,7 +99,7 @@ def generate_response(input_text, image, pdf_content, openai_api_key, reasoning_
         response = openai.ChatCompletion.create(
             model=model_choice,
             messages=messages,
-            max_tokens=2000
+            max_completion_tokens=2000
         )
 
         return response.choices[0].message.content