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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 21 Aug 2026
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fast-mode changedbuild-with-claude/fast-mode

Nearest release: v2.1.239, published 2 hours 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.

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First seen 14 Aug 2026 this site's first read of the page
Recorded edits19to this page, all time

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2222* Claude Opus 4.8 (claude-opus-4-8)
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25 Fast mode for Claude Opus 5 and Claude Opus 4.8 is available as a research preview on the Claude API, including [Claude Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview), only. It is not available on Amazon Bedrock, Google Cloud, or Microsoft Foundry.
25 Fast mode for Claude Opus 5 and Claude Opus 4.8 is available as a research preview on the Claude API, including [Claude Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview), only. It is not available on Amazon Bedrock, Claude Platform on AWS, Google Cloud, or Microsoft Foundry.
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