The gateway model to reach for when an agent has no opinion.
A default exists because the gateway rejects an unknown model id with a
400 that only appears at the first session — so "invent a plausible model
name" is a failure mode with no compile-time or deploy-time guard, and one
that a code-generating agent falls into readily.
The gateway model to reach for when an agent has no opinion.
A default exists because the gateway rejects an unknown model id with a 400 that only appears at the first session — so "invent a plausible model name" is a failure mode with no compile-time or deploy-time guard, and one that a code-generating agent falls into readily.