Model access

Which models your plan can use.

Each plan includes a specific list of models. A plan does not automatically include every model in the catalog.

What happens

Model in your plan — the request is served from your allowance.
Model not in your plan — the request is refused with 403 model_not_in_plan and nothing is charged. If the key has balance fallback on, it is paid from your balance instead.

Pay-as-you-go accounts (no plan) can use every model.

Which models are in my plan?

The Plans page lists the models of every plan.
Console → Models shows your allowance per model.
GET /v1/key returns it from code — see Check your usage.

Tip for coding agents

Some agents call a second, smaller model in the background (Claude Code's "Haiku" model, for example). Make sure every model your agent is configured with is in your plan — see Claude Code.