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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 14 Oct 2026
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Claude Code on Claude Platform on AWS changedclaude-platform-on-aws

Nearest release: v2.1.299, published 2 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 14 Oct 2026 02:36 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 14 Oct 2026 02:37 UTC.

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274274Claude Platform on AWS uses the same model IDs as the direct Claude API.
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276The default aliases `fable`, `opus`, `sonnet`, and `haiku` resolve to Claude Code's built-in defaults for Claude Platform on AWS, which can lag the newest release. Without `ANTHROPIC_DEFAULT_OPUS_MODEL`, the `opus` alias resolves to Opus 5.5. Before v2.1.280, it resolved to Opus 5 from v2.1.219, to Opus 4.8 from v2.1.207, and to Opus 4.7 before that.
276The default aliases `fable`, `opus`, `sonnet`, and `haiku` resolve to Claude Code's built-in defaults for Claude Platform on AWS, which can lag the newest release. Without `ANTHROPIC_DEFAULT_OPUS_MODEL`, the `opus` alias resolves to Opus 5.5. Before v2.1.280, it resolved to Opus 5 from v2.1.219, and to Opus 4.8 from v2.1.207.
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278278If you deploy Claude Code to a team, pin the model IDs explicitly so a new release doesn't move everyone at once:
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