GoKawiilNew open-source library litelm offers a stripped-down LiteLLM alternative
A developer released litelm, a lightweight library that replicates LiteLLM's core routing and message-translation functionality across LLM providers in roughly 2,900 lines of code with only two dependencies. It deliberately omits LiteLLM's larger feature set—proxy servers, caching, cost tracking, and dozens of add-ons—keeping only model routing, streaming, tool use, embeddings, and the Responses API. The API mirrors LiteLLM's function names and arguments, so existing users can switch by simply renaming their imports.