OptionalaliasesOther names the CLI accepts for this model, such as Claude Code's sonnet alias for the
concrete model it currently resolves to; id is always the concrete model.
OptionaleffortThe CLI needs an effort with this identifier: agy lists gemini-3.8-flash-high
and rejects gemini-3.8-flash without --effort.
Accepted reasoning_effort values; empty when the model takes none.
Identifier the caller passes as model.
OptionalisThe CLI's default model.
One model a CLI offers.