All terms
Frameworks & Tools
OpenRouter
A service offering one API endpoint that routes to many models from different providers.
Definition
OpenRouter is a service that exposes a single OpenAI-compatible API backed by a large catalog of models from providers like OpenAI, Anthropic, Google, Meta, and open-source hosts. It handles routing, fallback between providers, rate-limit management, and cost tracking, so developers can switch models without changing their integration code. It also supports price comparison and automatic failover.