Update app.py

app.py

@@ -67,7 +67,7 @@ if st.button("🚀 Ask") and uploaded_files and question and api_key:
             try:
                 openai.api_key = api_key
                 response = openai.ChatCompletion.create(
-                    model="gpt-4",
+                    model="gpt-3.5-turbo",  # ✅ Updated model
                     messages=[
                         {"role": "system", "content": "You are a helpful assistant that answers questions based on uploaded documents."},
                         {"role": "user", "content": f"DOCUMENT:\n{combined_text[:6000]}\n\nQUESTION:\n{question}"}