Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
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overview changed

resources/overview

Nearest release: v2.1.257, published under an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
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From line 5 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits4to this page, all time

The whole hunk

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77<CardGroup cols={3}>
8 <Card title="Claude Fable 5.1 and Mythos 5.1 System Card" icon="file" href="https://www.anthropic.com/claude-fable-5-1-mythos-5-1-system-card">
9 Detailed documentation of Claude Fable 5.1 and Claude Mythos 5.1.
10 </Card>
11 
812 <Card title="Claude Opus 5 System Card" icon="file" href="https://www.anthropic.com/claude-opus-5-system-card">
913 Detailed documentation of Claude Opus 5.
1014 </Card>