You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ModelsArea: what it touches
ImprovementsKind: in v2.1.251,
ImprovementsSection of the release
What
Matching a short name such as opus, sonnet, haiku or fable to a full model now refuses candidates that fail an allowed-base-model check, narrowing what these aliases can pick.
Details
The check runs first, before any name comparison, and is not configurable.
Evidence
if (Bm(r) && !Mw(r)) return !1;
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
