Update app.py

app.py

@@ -70,8 +70,8 @@ def create_conversational_chain(vector_store):
     load_dotenv()
     llm = Replicate(
         streaming = True,
-        # model = "replicate/llama-2-70b-chat:58d078176e02c219e11eb4da5a02a7830a283b14cf8f94537af893ccff5ee781",
-        model = "meta/llama-2-7b-chat:8e6975e5ed6174911a6ff3d60540dfd4844201974602551e10e9e87ab143d81e",
+        model = "replicate/llama-2-70b-chat:58d078176e02c219e11eb4da5a02a7830a283b14cf8f94537af893ccff5ee781",
+        # model = "meta/llama-2-7b-chat:8e6975e5ed6174911a6ff3d60540dfd4844201974602551e10e9e87ab143d81e",
         callbacks=[StreamingStdOutCallbackHandler()],
         input = {"temperature": 0.01, "max_length" :500,"top_p":1})
     memory = ConversationBufferMemory(memory_key="chat_history", return_messages=True)