feat(provider/anthropic): add support for new Claude Sonnet 4.6 model#12645
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felixarntz merged 7 commits intomainfrom Feb 17, 2026
Merged
feat(provider/anthropic): add support for new Claude Sonnet 4.6 model#12645felixarntz merged 7 commits intomainfrom
felixarntz merged 7 commits intomainfrom
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… 4.6 model (#12648) This is an automated backport of #12645 to the release-v5.0 branch. Conflicts fixed by @felixarntz ### `git cherry-pick` output ``` Auto-merging content/docs/02-foundations/02-providers-and-models.mdx Auto-merging content/providers/01-ai-sdk-providers/05-anthropic.mdx CONFLICT (content): Merge conflict in content/providers/01-ai-sdk-providers/05-anthropic.mdx Auto-merging content/providers/01-ai-sdk-providers/index.mdx Auto-merging examples/ai-core/src/generate-text/anthropic-reasoning.ts Auto-merging examples/ai-core/src/stream-text/anthropic-context-management-clear-tool-uses.ts Auto-merging examples/ai-core/src/stream-text/anthropic-reasoning.ts CONFLICT (modify/delete): examples/ai-functions/src/generate-text/anthropic-context-management.ts deleted in HEAD and modified in 2a1c664 (feat(provider/anthropic): add support for new Claude Sonnet 4.6 model (#12645)). Version 2a1c664 (feat(provider/anthropic): add support for new Claude Sonnet 4.6 model (#12645)) of examples/ai-functions/src/generate-text/anthropic-context-management.ts left in tree. Auto-merging packages/anthropic/src/anthropic-messages-language-model.ts Auto-merging packages/anthropic/src/anthropic-messages-options.ts Auto-merging packages/gateway/src/gateway-language-model-settings.ts error: could not apply 2a1c664... feat(provider/anthropic): add support for new Claude Sonnet 4.6 model (#12645) hint: After resolving the conflicts, mark them with hint: "git add/rm <pathspec>", then run hint: "git cherry-pick --continue". hint: You can instead skip this commit with "git cherry-pick --skip". hint: To abort and get back to the state before "git cherry-pick", hint: run "git cherry-pick --abort". hint: Disable this message with "git config set advice.mergeConflict false" ``` --------- Co-authored-by: Felix Arntz <felix.arntz@vercel.com>
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Background
Anthropic released Claude Sonnet 4.6: https://www.anthropic.com/news/claude-sonnet-4-6
This PR adds the new model string across the SDK so it's recognized with correct capabilities.
Summary
Adds
claude-sonnet-4-6as a recognized model ID in theanthropic,amazon-bedrock, andgoogle-vertexprovider packages. The model is registered with 128k max output tokens and structured output support (same tier asclaude-opus-4-6). It supports both adaptive and enabled thinking modes.Documentation model tables and capability lists are updated to include the new model. A few relevant examples (
anthropic-reasoning,anthropic-context-management) are updated to use the new model string.Manual Verification
N/A — model string addition, verified via type check (
pnpm type-check:full).Checklist
pnpm changesetin the project root)Future Work
N/A
Related Issues
N/A