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Sweep 28 Sep 2026 · 18:16Z Build v2.1.284 505 read Stable v2.1.277 Latest v2.1.284 Next v2.1.284 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.284 ·

The xhigh effort level no longer names a specific model

The xhigh effort description now ends "on supported models" instead of naming a model, and the check for which models allow it was reworked

You'll notice Improvements
JSON All of v2.1.284
You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
EffortArea: what it touches
ImprovementsKind: in v2.1.284,
ImprovementsSection of the release
What

Effort is how hard Claude reasons before answering. The description of the xhigh level now reads "Deeper reasoning than high, just below maximum (on supported models)". Before, the text in brackets was filled in with a specific value. The check that decides whether xhigh is supported was also reworked.

Why

The visible change is cosmetic, in the list where you pick an effort level.

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 doubtWhether the reworked check changes which models allow xhigh is not known.

See this entry in the whole of v2.1.284 →

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