What it is
OpenRouter provides an API layer for routing requests to multiple model providers. It can simplify experimentation, but model availability, free routes, and pricing vary by provider.
Free tier summary
Some free or promotional model routes may be available. Exact access and rate limits should be checked in OpenRouter's model and account pages.
Best for
- Trying many models
- API prototyping
- Coding agent backends
Limitations
- Upstream terms vary
- Free routes may change
- Requires API integration
License / commercial use notes
Commercial use depends on OpenRouter terms and the selected upstream model.