Some chats let you choose from an available set of models.
What to expect
A Default model is always available as a baseline.
Additional models may be available depending on tier and mode.
If a model is locked or unavailable, you’ll get an explicit error (no silent fallback).
Why you don’t see a “model list” here
Model availability is configured by admin-controlled catalog data and can change. We keep docs accurate by describing behavior and guarantees, not a static menu.