Validate a model id. Any non-empty provider/model string is accepted (the gateway resolves it); this only rejects shapes that are clearly wrong so the user gets a fast, local error instead of an opaque API failure.
provider/model
Validate a model id. Any non-empty
provider/modelstring is accepted (the gateway resolves it); this only rejects shapes that are clearly wrong so the user gets a fast, local error instead of an opaque API failure.