Update app.py

app.py

@@ -176,7 +176,7 @@ Now, generate the {matrix_type}:
 """
 
     response = openai.ChatCompletion.create(
-        model="gpt-3.5-turbo",
+        model="gpt-4-turbo",
         messages=[
             {"role": "system", "content": "You are a precise matrix generator that outputs only the requested matrix without any additional text."},
             {"role": "user", "content": prompt}