Claude Code v2.1.221 ·
Fast mode availability text drops Opus 4.7
Fast mode availability text now lists only Opus 5 and 4.8.
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ModelsArea: what it touches
ImprovementsKind: in v2.1.221,
ImprovementsSection of the release
What
The environment prompt describing fast mode now lists Opus 5 and 4.8 only, where it previously also listed 4.7.
Details
- changed in both places the blurb is emitted
Evidence
It can be toggled with /fast and is available on Opus 5/4.8.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
See this entry in the whole of v2.1.221 →
