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Sweep 09 Oct 2026 · 17:27Z Build v2.1.296 517 read Stable v2.1.287 Latest v2.1.296 Next v2.1.296 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 8 Oct 2026
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Claude Code on Amazon Bedrock changedamazon-bedrock

Nearest release: v2.1.295, published under an hour 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 8 Oct 2026 18:41 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 8 Oct 2026 18:45 UTC.

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495495## 1M token context window
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497Claude Sonnet 5, Opus 4.6 and later, and Sonnet 4.6 support the [1M token context window](https://platform.claude.com/docs/en/build-with-claude/context-windows#context-window-sizes-by-model) on Amazon Bedrock. Sonnet 5 always runs with the 1M window on both the Invoke API and the [Mantle endpoint](#use-the-mantle-endpoint), with no `[1m]` variant to select. For the other models on the Invoke API, Claude Code automatically enables the extended context window when you select a 1M model variant.
497Fable models, Sonnet 5 and later, and Opus 4.7 and later run with the [1M token context window](https://platform.claude.com/docs/en/build-with-claude/context-windows#context-window-sizes-by-model) by default on Amazon Bedrock, on both the Invoke API and the [Mantle endpoint](#use-the-mantle-endpoint), with no `[1m]` suffix needed. An application inference profile ARN gets the 1M window when a [`modelOverrides`](#map-each-model-version-to-an-inference-profile) entry maps its model to it. To keep a 200K window instead, set [`CLAUDE_CODE_DISABLE_1M_CONTEXT=1`](/docs/en/model-config#turn-off-1m-context).
498498 
499The [setup wizard](#sign-in-with-bedrock) offers a 1M context option when it pins models. To enable it for a manually pinned model instead, append `[1m]` to the model ID. See [Pin models for third-party deployments](/docs/en/model-config#pin-models-for-third-party-deployments) for details, including how to use the 1M window without changing the pin.
499Opus 4.6 and Sonnet 4.6 on the Invoke API reach the 1M window when you select their `[1m]` variant. The [setup wizard](#sign-in-with-bedrock) offers a 1M context option when it pins models. To enable it for a manually pinned model instead, append `[1m]` to the model ID. See [Pin models for third-party deployments](/docs/en/model-config#pin-models-for-third-party-deployments) for details, including how to use the 1M window without changing the pin.
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501Before v2.1.287, the Fable models and Opus 4.7 and later ran with a 200K window by default on the Invoke API and reached the 1M window there through a `[1m]` suffix.
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501503## Service tiers
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