OpenRouter

Single API for 100+ LLMs — compare models, route to the best, pay per token

OpenRouter is a hosted API that provides access to 100+ LLMs (GPT-4o, Claude, Llama, Mistral, Gemini, and more) through a single OpenAI-compatible endpoint. Pay only for what you use — often at lower prices than going direct — with automatic fallback routing and real-time model performance comparison.

Key specs

150 Models available source

as of 2026-03-27