iOS 27 ships with neural reasoning capabilities that run entirely on-device. Users can highlight text in Safari and get instant summaries. Photos app uses AI to organize, tag, and suggest edits. Mail understands context and prioritizes important messages.
What sets this apart: no cloud processing. Apple's neural engines—the same chips powering on-device ML in prior versions—now support more complex reasoning tasks. The architecture keeps data local, protecting privacy.
Developers get new APIs to tap into these capabilities. A notes app can now summarize meeting transcripts. A photo editor can use generative inpainting. The ecosystem of AI-powered apps will expand rapidly.
The tradeoff is real: on-device models are smaller, less capable than cloud alternatives. But for most users, the privacy and responsiveness wins justify the capability compromise.