[Python] Hugging face api is not returning any response and receiving errors

Discussão em 'Python' iniciado por Stack, Setembro 11, 2025.

  1. Stack

    Stack Membro Participativo

    I have been stepping into GenAI and currently I am working with Hugging face's open source models. However, I am not able to receive any response from the API. I have created access token on hugging face's platform, and used it in .env file too. Here is my code:

    from langchain_huggingface import ChatHuggingFace, HuggingFaceEndpoint
    from dotenv import load_dotenv

    load_dotenv()

    llm = HuggingFaceEndpoint(
    repo_id='TinyLlama/TinyLlama-1.1B-Chat-v1.0',
    task='text-generation'
    )

    model = ChatHuggingFace(llm=llm)

    result = model.invoke("What is the capital of India?")

    print(result.content)


    And this is the response I am getting:


    (venv) PS C:\Users\user\Desktop\langchain models> python ./ChatModels/huggingface.py Traceback (most recent call last): File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\huggingface_hub\utils_http.py", line 409, in hf_raise_for_status response.raise_for_status() File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\requests\models.py", line 1026, in raise_for_status raise HTTPError(http_error_msg, response=self) requests.exceptions.HTTPError: 504 Server Error: Gateway Time-out for url: https://router.huggingface.co/featherless-ai/v1/chat/completions
    ​

    The above exception was the direct cause of the following exception:

    Traceback (most recent call last): File "C:\Users\user\Desktop\langchain models\ChatModels\huggingface.py", line 13, in result = model.invoke("What is the capital of India?") ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\langchain_core\language_models\chat_models.py", line 393, in invoke self.generate_prompt( File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\langchain_core\language_models\chat_models.py", line 1019, in generate_prompt return self.generate(prompt_messages, stop=stop, callbacks=callbacks, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\langchain_core\language_models\chat_models.py", line 837, in generate self._generate_with_cache( File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\langchain_core\language_models\chat_models.py", line 1085, in _generate_with_cache result = self._generate( ^^^^^^^^^^^^^^^ File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\langchain_huggingface\chat_models\huggingface.py", line 577, in _generate answer = self.llm.client.chat_completion(messages=message_dicts, **params) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\huggingface_hub\inference_client.py", line 923, in chat_completion data = self._inner_post(request_parameters, stream=stream) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\huggingface_hub\inference_client.py", line 279, in _inner_post hf_raise_for_status(response) File "C:\Users\user\Desktop\langchain models\venv\Lib\site-packages\huggingface_hub\utils_http.py", line 482, in hf_raise_for_status raise _format(HfHubHTTPError, str(e), response) from e huggingface_hub.errors.HfHubHTTPError: 504 Server Error: Gateway Time-out for url: https://router.huggingface.co/featherless-ai/v1/chat/completions

    That's quite a long one I tried to research a bit and got to know that maybe the model which I am calling api for doesn't work, but it happens for every model. Please help me out.

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