Apple plans third-party AI model switching in iOS 27, testing Google and Anthropic integrations

Apple is planning to allow users to select their preferred AI model for Apple Intelligence features in iOS 27, iPadOS 27, and macOS 27, expected this fall. According to Bloomberg's Mark Gurman, the company is internally testing integrations with Google and Anthropic's models.

How Extensions will work

Apple will introduce "Extensions" — third-party AI models that can power Apple Intelligence features system-wide. These extensions will run not just Siri, but also Writing Tools and Image Playground. Users will choose from AI model providers that opt in by adding support through their App Store apps.

Once a compatible AI app is installed, users will set their preferred model through the Settings app. Apple will allow different Siri voices for different AI models — responses from Apple's models could use one voice, while ChatGPT-powered responses could use another.

Current state and testing

ChatGPT is currently the only third-party AI model integrated into Apple Intelligence. According to Gurman, Apple is already internally testing integrations with both Google and Anthropic's AI models.

Google's models are also reported to be the backbone of Apple's upcoming Siri revamp, though details on this integration remain limited.

Timeline and availability

All three operating systems — iOS 27, iPadOS 27, and macOS 27 — are expected to launch this fall with the Extensions feature.

What this means

Apple's move to support third-party AI models system-wide represents a significant shift from its typically closed ecosystem approach. By allowing users to swap out the underlying AI powering Siri and other Intelligence features, Apple acknowledges that no single model excels at all tasks. The internal testing with Google and Anthropic suggests these will likely be among the first available options alongside ChatGPT. This strategy could position Apple Intelligence as a platform rather than a single AI product, potentially giving it more flexibility as the AI landscape evolves. However, Apple has not confirmed pricing structures, performance expectations, or which specific models from Google and Anthropic are being tested.