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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
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beta-headers changedapi/beta-headers

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181181### Beta features on other platforms
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183Beta names are the same on every platform that accepts them, but not every platform accepts every beta. [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws), [Microsoft Foundry](https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry), and [Google Cloud](https://platform.claude.com/docs/en/build-with-claude/claude-on-vertex-ai) take beta names in the `anthropic-beta` header, as the Claude API does. To send several betas, put their names in one header, separated by commas: Google Cloud reads only one `anthropic-beta` header and ignores the rest, so betas in the others don't take effect.
183Beta names are the same on every platform that accepts them, but not every platform accepts every beta. [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws), [Claude Models on Google Cloud (Anthropic managed)](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/anthropic-managed), [Microsoft Foundry](https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry), and [Claude Models on Google Cloud (Google managed)](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/google-managed) take beta names in the `anthropic-beta` header, as the Claude API does. To send several betas, put their names in one header, separated by commas: Claude Models on Google Cloud (Google managed) reads only one `anthropic-beta` header and ignores the rest, so betas in the others don't take effect.
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185185On Amazon Bedrock, where beta names go depends on the API you call:
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