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npm · #4482

@ai-sdk/anthropic

4.0.44vercel/ai ↗

Release timeline

588 releases since 2024
20252026

Releases

  1. 4.0.4426 Aug 2026
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  2. 4.0.4225 Aug 2026
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    • 591d25b: feat: add batch completion webhooks. experimental_startTextBatch accepts a webhookUrl, and the gateway provider registers it through the batch callbackUrl contract and exports typed async-job metadata. Direct Anthropic and OpenAI batch providers return an unsupported warning when the option is provided.
    • Updated dependencies [591d25b]
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  3. 4.0.4122 Aug 2026
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  4. 4.0.4019 Aug 2026
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  5. 4.0.3914 Aug 2026
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    • 4579b08: Preserve Anthropic server-tool caller metadata in multi-turn conversations.
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  6. 4.0.3811 Aug 2026
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  7. 4.0.3710 Aug 2026
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  8. 4.0.367 Aug 2026
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  9. 4.0.357 Aug 2026
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  10. 4.0.347 Aug 2026
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    • e6415bd: feat(anthropic): add text batch support
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  11. 4.0.336 Aug 2026
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  12. 4.0.326 Aug 2026
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    • 8b96941: Reject spliced Anthropic generations while allowing duplicate message start events for the active message.
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  13. 4.0.304 Aug 2026
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  14. 4.0.294 Aug 2026
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  15. 4.0.283 Aug 2026
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    • 9337ecd: Preserve Anthropic prompt-cache matches by replaying complete code-execution transcripts in their original wire shape.
    • Updated dependencies [79e133c]
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  16. 4.0.2731 Jul 2026
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    • Updated dependencies [5fc7da5]
    • Updated dependencies [93b2acd]
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  17. 4.0.2631 Jul 2026
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    • dc0c28e: Return visible summarized reasoning when generic reasoning enables adaptive thinking.
    • Updated dependencies [fa95504]
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  18. 4.0.2530 Jul 2026
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    • d8210b6: chore: centralize record type guards in provider-utils
    • b192878: feat: add experimental_toolCaller routing to generateText for code mode
    • Updated dependencies [d8210b6]
    • Updated dependencies [b192878]
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  19. 4.0.2429 Jul 2026
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    • Updated dependencies [1659cd5]
    • Updated dependencies [6a5bdff]
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  20. 4.0.2328 Jul 2026
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    • Updated dependencies [0c464d9]
    • Updated dependencies [c49380c]
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  21. 4.0.2227 Jul 2026
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  22. 4.0.2126 Jul 2026
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    • e29788d: fix(anthropic): report thinking tokens as reasoning token usage
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  23. 4.0.2024 Jul 2026
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    • cbdc990: feat (provider/anthropic): support fallbacks 'default' mode, which routes safety classifier refusals to Anthropic's recommended fallback model (adds the server-side-fallback-2026-07-01 beta automatically)
    • cbdc990: feat (provider/anthropic): support mid-conversation tool changes via the toolChanges system message provider option, emitting tool_addition/tool_removal content blocks and the mid-conversation-tool-changes-2026-07-01 beta
    • cbdc990: feat (provider/anthropic): add claude-opus-5 model id with frontier-tier capabilities (128k output tokens, structured output, adaptive thinking, xhigh effort, sampling parameter rejection, thinking-disabled only at effort high or below)
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  24. 4.0.1923 Jul 2026
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    • 01a596a: fix (provider/anthropic): use current-generation capability defaults for unrecognized Claude model IDs while retaining conservative defaults for legacy Claude and non-Claude models.
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  25. 4.0.1821 Jul 2026
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    • 97de198: Warn when an unknown model uses the default 4096 max output token limit.
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  26. 4.0.1721 Jul 2026
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    • b72fc7c: fix(amazon-bedrock): sanitize unsupported JSON Schema constraints in native Anthropic structured output
    • 9218ebe: fix(provider/anthropic): warn when parallel tool use is requested with JSON tool structured output
    • Updated dependencies [02ffdcb]
    • Updated dependencies [76cb673]
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  27. 4.0.1617 Jul 2026
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    • afcf19c: fix(provider/anthropic): preserve web search citations when replaying assistant messages
    • Updated dependencies [cd06458]
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  28. 4.0.1514 Jul 2026
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  29. 4.0.1413 Jul 2026
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    • 4be62c1: fix(provider-utils): validate provider-response URLs in getFromApi

      getFromApi now has a validateUrl flag. It is optional so existing callers keep compiling (omitting it behaves like false, i.e. no validation), but all AI SDK provider packages set it explicitly at every call site so each one makes a visible trust decision. When true, the URL is routed through fetchWithValidatedRedirects — the same guard used by downloadBlob — which rejects private/loopback/link-local targets, re-validates every redirect hop, strips proxy/metadata/cookie request headers, and drops all caller headers except the user-agent on cross-origin redirects (custom API-key headers must not follow a redirect off-origin any more than Authorization may); blocked URLs throw DownloadError. It is enabled at the image/video/audio download and polling call sites where the URL comes from a provider response body; URLs built from developer-configured endpoints pass validateUrl: false and are unaffected.

      A new optional credentialedOrigin withholds caller headers unless the URL is same-origin with it, so the API key is not sent to a response-supplied host on a different origin.

      A new optional trustedOrigin exempts URLs (and redirect hops) that are same-origin with the developer-configured provider endpoint from target validation, so self-hosted and localhost deployments whose response URLs point back at the configured host keep working; all other hops are still validated.

      Also closes range gaps in validateDownloadUrl (IPv4 224.0.0.0/4 multicast and the TEST-NET documentation ranges 192.0.2.0/24, 198.51.100.0/24, 203.0.113.0/24; IPv6 documentation ranges 2001:db8::/32 and 3fff::/20), and follows only the fetch-spec redirect status codes (301/302/303/307/308) — a Location header on any other status is not followed. This guard performs string/literal checks only and does not resolve DNS; hostnames that resolve to private addresses and DNS rebinding remain out of scope and must be constrained at the network layer (or by injecting a Node fetch that pins the resolved IP at connect time) for server deployments handling untrusted URLs. See contributing/secure-url-handling.md.

    • cd12954: Reject empty OpenAI, Anthropic, and Replicate base URLs with a helpful AI SDK invalid argument error.

    • Updated dependencies [4be62c1]

    • Updated dependencies [7805e4a]

    • Updated dependencies [cd12954]

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  30. 4.0.1210 Jul 2026
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    • 308a519: chore: enforce consistent imports from zod/v4 instead of zod
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  31. 4.0.119 Jul 2026
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  32. 4.0.108 Jul 2026
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  33. 4.0.97 Jul 2026
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    • 2e45d9c: fix(anthropic): wrap invalid tool input in object
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  34. 4.0.84 Jul 2026
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    • 0aa0ff3: fix(anthropic): forward thinking: { type: 'disabled' } to the API instead of stripping it

      Previously, setting providerOptions.anthropic.thinking = { type: 'disabled' } (or top-level reasoning: 'none') was accepted by the schema but silently dropped from the outgoing request. For models that default thinking on (e.g. Sonnet 5), this left thinking enabled and could consume a small max_tokens budget entirely. The disabled value is now sent to the Anthropic Messages API.

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  35. 4.0.72 Jul 2026
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    • 5c5c0f5: Add experimental streaming transcription support for transcription models, including OpenAI gpt-realtime-whisper and xAI WebSocket STT.
    • Updated dependencies [5c5c0f5]
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  36. 4.0.62 Jul 2026
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    • c6f5e62: Prevent prototype pollution when synchronously parsing provider JSON inputs and expose secureJsonParse from provider-utils.
    • 679c52a: Normalize a bare https://api.anthropic.com base URL to include /v1.
    • Updated dependencies [c6f5e62]
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  37. 4.0.51 Jul 2026
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  38. 4.0.430 Jun 2026
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    • c18018c: feat (provider/anthropic): add claude-sonnet-5 model id
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  39. 4.0.330 Jun 2026
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  40. 4.0.229 Jun 2026
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    • dfffb27: fix(anthropic): correctly map delta type when code execution tools are used
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  41. 4.0.127 Jun 2026
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  42. 4.0.025 Jun 2026
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    Major Changes

    • 832f86f: fix(anthropic): remove cacheCreationInputTokens from providerMetadata

    • 34bd95d: feat(ai): add support for uploading provider skills using the provider references abstraction

    • ef992f8: Remove CommonJS exports from all packages. All packages are now ESM-only ("type": "module"). Consumers using require() must switch to ESM import syntax.

    • c29a26f: feat(provider): add support for provider references and uploading files as supported per provider

    • 3887c70: feat(provider): add new top-level reasoning parameter to spec and support it in generateText and streamText

    • 8359612: Start v7 pre-release

    • 04e9009: chore: make provider implementations code patterns more consistent, including renaming certain exported symbols

      For all externally exported symbols that were renamed, the old names continue to work via deprecated aliases.

    Patch Changes

    • e02f041: feat(provider/anthropic): add support for claude-opus-4-8

    • 648705c: fix(provider/anthropic): fix remaining errors with Anthropic code_execution tool dynamic calls from latest web_fetch or web_search

    • 38fc777: Add AI Gateway hint to provider READMEs

    • ee798eb: chore(provider-utils): rename Experimental_Sandbox to Experimental_SandboxSession

    • e748b35: chore: update v3 specs to v4

    • 19c5ee2: fix(anthropic): reorder assistant content b/w client and provider tool use

    • 0ee8aec: feat (provider/anthropic): support passing metadata.user_id

    • c012d57: feat(anthropic): sanitize the unsupported JSON schema validation properties

    • 8018480: feat(anthropic): add the new advisor tool

    • e5c4f40: Remove stale effort-2025-11-24 beta header — the extended thinking effort parameter is GA and no longer requires the beta flag. Vertex AI's strict validator was actively rejecting requests with this header.

    • f57c702: fix(anthropic): allow both temperature and topP for non-Anthropic models using the Anthropic-compatible API

      The temperature/topP mutual exclusivity check now only applies to known Anthropic models (model IDs starting with claude-). Non-Anthropic models using the Anthropic-compatible API (e.g. Minimax) can now send both parameters as required by their APIs.

    • 2610e84: feat(provider/anthropic): automatically use sandbox in bash tool

    • d848405: feat: add optional abortSignal parameters to sandbox command execution

    • 87d1723: chore(anthropic): remove unnecessary messages affix from Anthropic symbols and files

    • 9f0e36c: trigger release for all packages after provenance setup

    • acdbf84: Handle errors from anthropic websearch tool

    • ad0b376: fix(provider/anthropic): stop adding fine-grained-tool-streaming-2025-05-14 beta for claude-opus-4-7

    • 58a2ad7: fix: more precise default message for tool execution denial

    • 21d1ee3: fix(anthropic): skip passing beta header for tool search tools

    • 1fe058b: fix(anthropic): preserve the error code returned by model

    • 7fc6bd6: Raise minimum supported Node.js version to 22. Supported versions: 22, 24, and 26.

    • 09bd27b: feat (provider/anthropic): add support for inference_geo provider option

    • 0c4c275: trigger initial canary release

    • 6fd51c0: fix(provider): preserve error type prefix in getErrorMessage

    • e311194: feat(ai): allow passing provider instance to uploadFile and uploadSkill as shorthand

    • 6c93e36: feat(provider-utils): add spawnCommand method to Experimental_Sandbox to allow for detached command execution

    • 9bd6512: feat(provider): change file part data property to be tagged with a type and remove the image part type

    • 258c093: chore: ensure consistent import handling and avoid import duplicates or cycles

    • 5463d0d: feat(provider): align tool result output content file part types with top-level message file part types

    • b8396f0: trigger initial beta release

    • 6b4d325: feat(provider/anthropic): add support for claude-fable-5 and the fallbacks API parameter

    • f05a40d: fix(vertex): throw warning when strict: true for vertexAnthropic

    • a6617c5: feat(provider-utils): add readFile and writeFile plus convenience wrappers to Experimental_Sandbox abstraction

    • a464505: fix(anthropic): propagate toModelOutput providerOption to anthropic tool results

    • 90e2d8a: chore: fix unused vars not being flagged by our lint tooling

    • b3976a2: Add workflow serialization support to all provider models.

      @ai-sdk/provider-utils: New serializeModel() helper that extracts only serializable properties from a model instance, filtering out functions and objects containing functions. Third-party provider authors can use this to add workflow support to their own models.

      All providers: headers is now optional in provider config types. This is non-breaking — existing code that passes headers continues to work. Custom provider implementations that construct model configs manually can now omit headers, which is useful when models are deserialized from a workflow step boundary where auth is provided separately.

      All provider model classes now include WORKFLOW_SERIALIZE and WORKFLOW_DESERIALIZE static methods, enabling them to cross workflow step boundaries without serialization errors.

    • 0d8f107: feat(provider/anthropic): add support for Opus 4.7 and relevant API enhancements

    • ff5eba1: feat: roll image-* tool output types into their equivalent file-* types

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  43. 4.0.0-canary.6612 Jun 2026pre-release
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    • Updated dependencies [aeda373]
    • Updated dependencies [375fdd7]
    • Updated dependencies [b4507d5]
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  44. 4.0.0-canary.6511 Jun 2026pre-release
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  45. 4.0.0-canary.649 Jun 2026pre-release
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    • 6b4d325: feat(provider/anthropic): add support for claude-fable-5 and the fallbacks API parameter
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  46. 4.0.0-canary.635 Jun 2026pre-release
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  47. 4.0.0-canary.624 Jun 2026pre-release
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    • ee798eb: chore(provider-utils): rename Experimental_Sandbox to Experimental_SandboxSession
    • Updated dependencies [ee798eb]
    • Updated dependencies [daf6637]
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  48. 4.0.0-canary.6128 May 2026pre-release
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    • e02f041: feat(provider/anthropic): add support for claude-opus-4-8
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  49. 4.0.0-canary.6026 May 2026pre-release
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    • 6c93e36: feat(provider-utils): add spawnCommand method to Experimental_Sandbox to allow for detached command execution
    • Updated dependencies [6c93e36]
    • Updated dependencies [f617ac2]
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  50. 4.0.0-canary.5922 May 2026pre-release
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    • 648705c: fix(provider/anthropic): fix remaining errors with Anthropic code_execution tool dynamic calls from latest web_fetch or web_search
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  51. 4.0.0-canary.5822 May 2026pre-release
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    • acdbf84: Handle errors from anthropic websearch tool
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  52. 4.0.0-canary.5719 May 2026pre-release
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  53. 4.0.0-canary.5515 May 2026pre-release
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    • a464505: fix(anthropic): propagate toModelOutput providerOption to anthropic tool results
    • Updated dependencies [28dfa06]
    • Updated dependencies [e93fa91]
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  54. 4.0.0-canary.5413 May 2026pre-release
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  55. 4.0.0-canary.5313 May 2026pre-release
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  56. 4.0.0-canary.5212 May 2026pre-release
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    • 8018480: feat(anthropic): add the new advisor tool
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  57. 4.0.0-canary.5111 May 2026pre-release
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  58. 4.0.0-canary.508 May 2026pre-release
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    • d848405: feat: add optional abortSignal parameters to sandbox command execution
    • Updated dependencies [d848405]
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  59. 4.0.0-canary.498 May 2026pre-release
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  60. 4.0.0-canary.487 May 2026pre-release
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