import os
from openai import OpenAI


def init_llm_client(api_key, model_id, base_url=None):
    """
    Initialize the OpenAI client with the provided API key and model ID.
    """
    if base_url:
        os.environ["OPENAI_API_BASE"] = base_url
    os.environ["OPENAI_API_KEY"] = api_key
    os.environ["OPENAI_MODEL_ID"] = model_id

    return OpenAI(api_key=api_key, model_id=model_id, base_url=base_url)