Concepts
Understand models, protocols, prices, and routing.
A model ID selects the model; a protocol defines the request and response format. The platform completes the call through an eligible route.
- Models and the catalog: model types, protocol support, and billing units.
- Protocol compatibility: different protocols under one API origin.
- Routing: route selection, failover, and parameter requirements.
- Session affinity: how reusing a route relates to caching.
- BYOK: availability of your own provider credentials.
Start with the quickstart for your first call, or the catalog to select a model.