Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Model SafetyArea: what it touches
Internal ChangesKind: in v2.1.267,
Internal ChangesSection of the release
What
A helper that decides whether an extra-high reasoning effort cap applies to a model previously required the thinking_disabled_effort_cap flag to be exactly true, or the model to literally be claude-opus-5. Now, any explicit value returned by the flag (true or false) is used first, and the claude-opus-5 hardcoded default only applies when the flag has no value at all.
Why
This mirrors a similar change to another flag in this release, letting the server control this cap explicitly instead of it always being forced on for claude-opus-5.
