iOS 27 will let users choose from multiple AI models for on-device features like Siri and writing tools.

Apple plans to launch iOS 27 with a new feature called "Extensions" that allows users to select from various third-party AI models to power functions such as Siri, writing tools, and image editing directly on their devices. This capability will also be available on iPadOS 27 and macOS 27. Models from companies like Google and Anthropic are currently being tested, while ChatGPT is expected to remain an option. This move reflects Apple's strategy to enhance AI experiences on its existing hardware rather than building extensive AI infrastructure, as the company prepares for leadership changes and aims to catch up in the AI space.