Update app.py

app.py

@@ -53,10 +53,13 @@ def get_vectorstore(text_chunks):
     vectorstore = FAISS.from_texts(texts=text_chunks, embedding=embeddings)
     return vectorstore
 
+    
+# google/flan-t5-xxl
+
 def get_conversation_chain(vectorstore):
     #llm = OpenAI()
     #llm = ChatOpenAI()
-    llm = HuggingFaceHub(repo_id="google/flan-t5-xxl", model_kwargs={"temperature":0.5, "max_length":512})
+    llm = HuggingFaceHub(repo_id="bigscience/bloom", model_kwargs={"temperature":0.5, "max_length":512})
     memory = ConversationBufferMemory(memory_key='chat_history', return_messages=True)
     conversation_chain = ConversationalRetrievalChain.from_llm(
         llm=llm,