Update app.py

app.py

@@ -54,14 +54,14 @@ from langchain.chains import RetrievalQAWithSourcesChain
 
 chain_type_kwargs = {"prompt": prompt}
 
-llm = ChatOpenAI(model_name="gpt-3.5-turbo", temperature=0)  # Modify model_name if you have access to GPT-4
-
 chain = RetrievalQAWithSourcesChain.from_chain_type(
     llm=llm,
     chain_type="stuff",
-    retriever = retriever,
+    retriever=retriever,
     return_source_documents=True,
-    chain_type_kwargs=chain_type_kwargs
+    chain_type_kwargs=chain_type_kwargs,
+    reduce_k_below_max_tokens=True,
+    verbose=True,
 )
 
 query = "행복한 인생이란?"