Update app.py

app.py

@@ -37,7 +37,7 @@ def generate_response(user_input, relevant_context="", max_tokens=150, temperatu
         combined_input = f"Question: {user_input}\nAnswer:"
     
     response = client.chat.completions.create(
-        model="gpt-3.5-turbo",
+        model="gpt-4-turbo",
         messages=[
             {"role": "system", "content": system_message},
             {"role": "user", "content": combined_input}