Update app.py

app.py

@@ -88,9 +88,9 @@ class SlpMultiAgent:
         MAX_QUESTION_LENGTH = 1000
         short_question = question  # [:MAX_QUESTION_LENGTH]
         
-        # Use cheaper, faster model
+        # Use more advanced model for better reasoning
         model = OpenAIServerModel(
-            model_id="gpt-3.5-turbo", 
+            model_id="gpt-4o", 
             temperature=0.0,  # Deterministic for consistency
             max_tokens=400    # Reduced tokens for cost efficiency
         )