An LLM gateway that checks the answer

llm11 is a drop-in gateway - OpenAI- and Anthropic-compatible, one base-URL swap - the same shape as LiteLLM, Portkey or OpenRouter. What it does differently: routing a request to the cheapest adequate model is table stakes now, shipped free by several gateways and increasingly by the model providers themselves. The part that actually protects you from a downgrade going wrong is verifying the answer that came back, which is what the rest of this gateway is built around.

Read how it works end to end.