● Covered by 2 sources · 2 reportsMedium impact2 neutral
Apple's Siri Architecture Supports Third-Party AI Model Integration, Code Reveals
Key points
- iOS 27 and macOS Golden Gate code shows Siri supports third-party AI models.
- Model Delegation allows Claude to function as a Siri extension.
- Inference Provider protocol enables full replacement of Apple's server-side Siri model.
- Third-party models can access system actions and personal data via Siri's interface.
- iOS 27 and macOS 27 code is not yet enabled for this feature.
- A developer named PDFU found evidence of this support.
Third-Party AI Integration in Siri
Analysis of private frameworks in iOS 27 and macOS Golden Gate reveals that Apple's new Siri architecture is designed to integrate third-party AI models. This integration appears to be deep, allowing external AI services to function within the Siri ecosystem.
Model Delegation for Extensions
One mechanism, called Model Delegation, allows AI models like Claude to appear as Siri extensions. This functions similarly to the existing built-in ChatGPT extension. Users can select Claude as the AI model through a contextual menu in the "Search or Ask" bar. When a request requires an Apple system feature, Claude can hand the task back to Siri for execution, such as setting a reminder in the Reminders app.
Full Model Replacement via Inference Provider
A second protocol, the Inference Provider in "Model Manager Services," allows Apple's own server-side Siri model to be completely replaced by another model, such as GPT-5.6 Terra. In this scenario, the third-party model receives Apple's Siri planner prompt and tool definitions, enabling it to request system actions, access personal data, and formulate responses that Siri then presents using its own interface and voice. This was demonstrated with ChatGPT finding emails, summarizing them, and sending a message via the Messages app.
Implications for AI Landscape
This level of integration could significantly open up the AI landscape for Apple software requests, providing users with more advanced capabilities beyond Siri's native functions, such as creating CSV files. The European Union's Digital Markets Act, which mandates third-party access to iOS features, may have influenced Apple's development of this approach.
Updates
- iOS 27 and macOS 27 code is not yet enabled for this feature.
- A developer named PDFU found evidence of this support.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
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How outlets covered it
Code in iOS 27 and macOS 27 indicates Apple may allow users to select third-party AI assistants like Claude or ChatGPT to replace Siri AI. This change would provide users with more choice and could drive competition among AI platforms, potentially improving Apple's own Siri AI.
Code analysis of iOS 27 and macOS Golden Gate private frameworks indicates Apple has designed Siri's new architecture to integrate third-party AI models like Claude and ChatGPT. This integration allows external AI models to handle requests and interact with Apple's system features, potentially expanding Siri's capabilities and offering users more choice.