GPT-4

changing to gpt-4.

app.py

@@ -42,7 +42,7 @@ async def factory():
     llm_predictor = LLMPredictor(
         llm=ChatOpenAI(
             temperature=0,
-            model_name="gpt-4-32k",
+            model_name="gpt-4",
             streaming=True,
         ),
     )