Major Changes

• 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

• cd27bca: added bedrock mantle provider

• d0dbd96: Fix createAmazonBedrock() capturing globalThis.fetch at initialization time, which caused telemetry instrumentation (e.g. OpenTelemetry, Datadog) and other globalThis.fetch patches applied after provider creation to be silently ignored.

• bc8ed78: Omit strict from tool specs for Claude Opus 4.7/4.8 on Bedrock, which reject the field on the Messages API

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

• 38fc777: Add AI Gateway hint to provider READMEs

• e748b35: chore: update v3 specs to v4

• b567a6c: dependency updates

• ed60b47: fix(provider/amazon-bedrock): fix Anthropic reasoning behavior related to Opus 4.7

• fae8d44: fix(provider/amazon-bedrock): merge custom reasoning config properties when top-level reasoning parameter is set

• b0c59e8: fix(amazon-bedrock): preserve reasoning text when signature is present

• 68c5081: fix(provider/amazon-bedrock): mark input optional on tool-use schema so streaming contentBlockStart events parse under Zod >= 4.4.0

• 32603d2: fix (provider/amazon-bedrock): correct mantle subpath exports

• 6732c16: fix(amazon-bedrock): do not use env var AWS_SESSION_TOKEN when keys are explicitly defined

• 1921625: fix(provider/amazon-bedrock): add tool search beta for Anthropic

• 24ac76f: fix(amazon-bedrock): preserve empty text blocks when reasoning content is present

• bcbaae6: fix(bedrock): skip passing unsigned reasoning content

• 9d5a299: fix(amazon-bedrock): support document files in tool results

• 6d8716c: feat(bedrock): add support for service tier for model inference

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

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

• 9eda693: fix(provider/amazon-bedrock): detect Cohere embedding models behind cross-region inference profile ids

• 4b20a5d: fix(provider/amazon-bedrock): transform bedrock/anthropic error responses to anthropic format

• b555b23: fix(amazon-bedrock): disable native structured output for claude-opus-4-7

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

• cdc15f3: feat(bedrock): support native structured output for anthropic models without reasoning

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

• 0c4c275: trigger initial canary release

• 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

• 9c78e5d: fix (provider/amazon-bedrock): preserve cache points on message content parts

• 9fa4e9d: fix(provider/amazon-bedrock): extract Cohere embedding token usage from response header

• 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

• 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