Siri can use Claude/others as backing AI

MacRumors

Apple's Siri AI Can Be Swapped Out for Claude, ChatGPT, Code Shows

Code sleuth "pdfu" has uncovered iOS 27 and macOS Golden Gate private frameworks that show Apple has designed its new Siri architecture to work with third-party AI models at what appears to be a surprisingly deep level. One mechanism called Model Delegation allows Claude to appear as a Siri extensio

https://www.macrumors.com/2026/09/14/siri-can-be-swapped-out-for-chatgpt-claude/