fix: add automatic caching for anthropic#12743
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gr2m merged 4 commits intovercel:mainfrom Feb 24, 2026
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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## Summary Backport of #12743 to `release-v5.0`. - Passes the `cacheControl` provider option as a top-level `cache_control` field in the Anthropic API request body to support [automatic caching](https://platform.claude.com/docs/en/docs/build-with-claude/prompt-caching#automatic-caching) - Includes tests for both `{ type: 'ephemeral' }` and `{ type: 'ephemeral', ttl: '1h' }` - Includes patch changeset for `@ai-sdk/anthropic` --------- Co-authored-by: Jade River Stokes <jaderiverstokes@gmail.com> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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Background
Anthropic now supports automatic caching. The top level provider options supports it already, however it gets stripped before being sent to the provider.
Summary
Pass the cacheControl flag through the provider.
Manual Verification
Adds unit test.
Checklist
pnpm changesetin the project root)Related Issues
Fixes #12712