Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ModelsArea: what it touches
Internal ChangesKind: in v2.1.312,
Internal ChangesSection of the release
Unclear Which feature this model check controls is not stated.
What
Claude Code has a check that asks whether the current model belongs to a certain group. It now passes only for claude-opus-4-5, claude-opus-4-6 and claude-opus-4-7. Before, any other model could still pass through a second, fallback check. That fallback has been removed.
Why
Models outside those three may no longer get whatever this check switches on.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhich feature this model check controls is not stated.
