Cool project, I had to implement the same for my experimental AI Agent: https://github.com/quantized-ai/luca-py

LiteLLM and LangChain are AWFUL pieces of software and should be avoided at ALL costs.

Btw, you should update httpx to httpx2, and I think it's not much effort to remove openai's SDK compatibility.

I'd love to have a provider-agnostic LLM router (almost) dependency free (aside from httpx2).