Update app.py

app.py

@@ -26,7 +26,7 @@ def generate_openai_response(instruction, context=None):
         if context:
             messages.append({"role": "user", "content": f"Context: {context}"})
         response = openai.ChatCompletion.create(
-            model="gpt-4",
+            model="gpt-3.5-turbo",  # Use GPT-3.5 Turbo for cost savings
             messages=messages,
             max_tokens=1200,
             temperature=0.7