AI 101

OpenRouter

Sketch: a traveller with one ticket and one bill picks from a departures board listing many models.

OpenRouter is a service that gives you one API and one bill for hundreds of AI models from many makers.

Think of it like this: It is one fuel card that works at every station, plus navigation options (Auto Router, Jev Router) that can pick the engine for you.

Source:

https://openrouter.ai/docs/quickstart (checked Oct 15, 2026)
https://openrouter.ai/docs/guides/overview/models (checked Oct 15, 2026)

RelatedModel router API API key

Used inAPI key Environment variable Model router