Update app.py

llm changed to openAI

app.py

@@ -1,7 +1,8 @@
 from dotenv import load_dotenv
 import streamlit as st
 from langchain.chains import RetrievalQA
-from langchain.llms import HuggingFaceHub
+#from langchain.llms import HuggingFaceHub
+from langchain.llms import OpenAI
 from langchain.vectorstores import Qdrant
 import qdrant_client
 import os
@@ -29,8 +30,8 @@ def get_vector_store():
     return vector_store
 
 def get_conversation_chain(vectorstore):
-    #llm = ChatOpenAI()
-    llm = HuggingFaceHub( repo_id="google/flan-t5-xxl", model_kwargs={"temperature":0.5, "max_length":512})
+    llm = ChatOpenAI()
+    #llm = HuggingFaceHub( repo_id="google/flan-t5-xxl", model_kwargs={"temperature":0.5, "max_length":512})
     memory = ConversationBufferMemory(memory_key='chat_history', return_messages=True)
     conversation_chain = ConversationalRetrievalChain.from_llm(
             llm =llm,