Is there en equivalent of .save method for ChatOpenAI?

[alnah]

https://python.langchain.com/docs/modules/model_io/models/llms/how_to/llm_serialization

Hi! ✌️ Is there en equivalent of .save method for ChatOpenAI?

from langchain.chat_models import ChatOpenAI
chat = ChatOpenAI(openai_api_key=openai_api_key, temperature=0.0)
chat.save("chat_openai.json")

returns

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/Users/alexis/Coding/LangChainCourse/langchain_course/draft.py", line 7, in <module>
    chat.save("chat_openai.json")
    ^^^^^^^^^
AttributeError: 'ChatOpenAI' object has no attribute 'save'

[dosubot[bot]]

Answer generated by a 🤖

Answer

I understand that you're trying to use a .save method with the ChatOpenAI class in the LangChain framework, but you're encountering an AttributeError because the ChatOpenAI object does not have a save attribute.

To clarify, the ChatOpenAI class in LangChain does not have a .save method. This is because ChatOpenAI is essentially a wrapper around OpenAI's Chat large language models. These models are hosted and maintained by OpenAI and are accessed via API calls. As such, there's no model data to save or load locally, which is why the .save method is not applicable in this context.

Here's a snippet of the ChatOpenAI class definition for reference:

class ChatOpenAI(BaseChatModel):
    """Wrapper around OpenAI Chat large language models.

    To use, you should have the ``openai`` python package installed, and the
    environment variable ``OPENAI_API_KEY`` set with your API key.

    Any parameters that are valid to be passed to the openai.create call can be passed
    in, even if not explicitly saved on this class.

    Example:
        .. code-block:: python

            from langchain.chat_models import ChatOpenAI
            openai = ChatOpenAI(model_name="gpt-3.5-turbo")
    """

As you can see, there's no 'save' method defined in this class.

This is the most likely explanation based on the information you've provided. However, if you believe this is a bug or an oversight that could impact other users, you're welcome to make a pull request to address it.

If my explanation contradicts your experience, I would recommend ensuring that you're using the latest version of the LangChain framework. There might have been updates or changes that could potentially resolve your issue.

Sources

• langchain/chat_models/openai.py

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