Update app.py

app.py

@@ -45,7 +45,7 @@ def LoadData(openai_key):
 def respond(message, chat_history):
     try:
         qa_chain = RetrievalQA.from_chain_type(
-            llm=OpenAI(temperature=0.4),
+            llm=OpenAI(temperature=0),
             # llm=OpenAI(temperature=0.4), 
             # llm=ChatOpenAI(temperature=0),
             chain_type="stuff",