fix

langchain_backend/utils.py

@@ -43,6 +43,7 @@ def create_prompt_llm_chain(system_prompt, modelParam="gpt-4o-mini"):
         task="text-generation",
         max_new_tokens=100,
         do_sample=False,
+        huggingfacehub_api_token=os.environ.get("HUGGINGFACEHUB_API_TOKEN")
     )
     # result = model.invoke("Hugging Face is")
     # print('result: ', result)