Two new model family identifiers, "fruitcake" and "macaroon", are pre-registered alongside "mythos" in the model-family detection array. These codenames are used by the same thinking-budget routing logic described above, meaning that when models with these internal names ship they will automatically inherit the same 2048-token thinking configuration without requiring a code change.
No user-facing claude-fruitcake- or claude-macaroon- models are available yet; this is infrastructure preparation.
Evidence
New array ZW_ = ["fruitcake", "macaroon", "mythos"] (search for "fruitcake").
Strings lifted out of the shipped bundle, so the claim above can be checked against them.