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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.319 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 28 Oct 2026
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apple-foundation-models changedcli-sdks-libraries/libraries/apple-foundation-models

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## Availability ### API support #### [Messages API](https://platform.claude.com/docs/en/build-with-claude/working-with-messages)

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22title: Apple Foundation Models
33url: https://platform.claude.com/docs/en/cli-sdks-libraries/libraries/apple-foundation-models
44description: Use Claude on Apple platforms through the Foundation Models framework with the Claude for Foundation Models Swift package.
5featureMetadata:
6 status: beta
7 supportedModels:
8 - claude-fable-5-1
9 - claude-mythos-5-1
10 - claude-fable-5
11 - claude-mythos-5
12 - claude-mythos-preview
13 - claude-opus-5-5
14 - claude-opus-5
15 - claude-sonnet-5-5
16 - claude-sonnet-5
17 - claude-haiku-5-5
18 - claude-haiku-4-5-20251001
19 - claude-opus-4-8
20 - claude-opus-4-7
21 - claude-opus-4-6
22 - claude-sonnet-4-6
23 - claude-opus-4-5-20251101
24 - claude-sonnet-4-5-20250929
25 supportedPlatforms:
26 Claude API: beta
527---
628 
729[Claude for Foundation Models](https://github.com/anthropics/ClaudeForFoundationModels) is a Swift package that makes Claude available as a server-side language model in Apple’s [Foundation Models](https://developer.apple.com/documentation/foundationmodels) framework. The package conforms Claude to the framework’s `LanguageModel` protocol, so you drive it with the same `LanguageModelSession` API you use for Apple’s on-device model: `respond(to:)`, streaming, guided generation, and tool calling all work the same way.
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263285| [Claude API reference](https://platform.claude.com/docs/en/api/overview) | The underlying Messages API |
264286 
265287The package is licensed under Apache 2.0. Bug reports are welcome through GitHub issues. External pull requests are not being accepted during the beta period.
288 
289## Availability
290 
291Apple Foundation Models are in beta on every model.
292 
293### API support
294 
295#### [Messages API](https://platform.claude.com/docs/en/build-with-claude/working-with-messages)
296 
297* Availability: Available
298 
299| Status | Cloud platforms |
300| ------ | --------------- |
301| Beta | Claude API |
266302 
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