Update app.py

app.py

@@ -1,4 +1,6 @@
-#Reference : https://medium.com/@tahreemrasul/building-a-chatbot-application-with-chainlit-and-langchain-3e86da0099a6
+#References : 
+#https://medium.com/@tahreemrasul/building-a-chatbot-application-with-chainlit-and-langchain-3e86da0099a6
+#https://github.com/ArjunAranetaCodes/Python-DataScience-AI/blob/main/Chain-LitChat-Mistral7b/app.py
 from langchain_openai import ChatOpenAI
 from langchain.chains import LLMChain
 from prompts import maths_assistant_prompt_template
@@ -18,6 +20,10 @@ async def start_llm():
     print("Initializing llm...")
     #llm = ChatOpenAI(model='gpt-4o-mini',
     #             temperature=0.5, api_key = api_key)
+    model_id = "mistralai/Mixtral-8x7B-Instruct-v0.1"
+    llm = HuggingFaceEndpoint(
+        repo_id=model_id, max_length=2000, temperature=0.5, token=os.getenv('HF_READ_TOKEN')
+    )
     print("llm initialized!")
     conversation_memory = ConversationBufferMemory(memory_key="chat_history",
                                                    max_len=50,