Apple Ships Siri AI with Hidden Hooks for Third-Party Model Swaps
Apple releases Siri AI on iOS 27 and macOS Golden Gate, but code discovered by reverse engineer pdfu shows the assistant is engineered to let users swap in third-party models like Claude or ChatGPT. The EU’s Digital Markets Act likely pushed Apple to design for interoperability, though Siri AI won’t launch in the EU initially.
Bottom line — Siri AI launches today but remains blocked in the EU, as Apple faces DMA pressure to open its assistant to rivals.
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- Code sleuth pdfu found two mechanisms: Model Delegation lets a third-party model like Claude appear as a Siri extension, while an Inference Provider protocol in Model Manager Services can completely replace Apple’s server-side model with alternatives such as GPT-5.6 Terra, per MacRumors.
- In a video demonstration, Claude could interpret a request for a reminder in Apple’s Reminders app and then hand the task back to Siri for execution; in another case, Claude created a CSV file that Siri AI cannot handle, per pdfu’s video on X.
- Apple’s press release states that these new features are powered by next-generation Apple Foundation Models built in collaboration with Google Gemini, and run on-device or via Private Cloud Compute.
- Apple confirmed that Siri AI will not be available initially in the EU on iOS, iPadOS, and watchOS, and said it is ‘working hard to find a path forward that preserves its users’ privacy and security.’
- The European Commission under the Digital Markets Act specifically requires Apple to give third parties effective access to iOS hardware and software features available to Apple’s own services, and has extended this principle to Siri, per MacRumors.
- Currently the ‘Ask…’ menu in macOS Golden Gate only lists Apple’s built-in ChatGPT extension; Claude support is visible in code but not yet enabled for users, according to 9to5Mac.
- Apple says Siri AI will expand to French, Japanese, Korean, Portuguese, and Spanish next month, and additional features like Audio Intelligence and a redesigned Health app will arrive later this year.
- The new Siri AI includes personal context understanding, onscreen awareness, integration with WhatsApp and Audible, and a dedicated Siri app for persistent conversations, per Apple’s newsroom.