Siri AI Opens to All App Developers in iOS 27.3 Beta

Apple has opened Siri AI to every developer. A developer news post on 3 November says that starting with the iOS 27.3, iPadOS 27.3, macOS 27.3 and visionOS 27.3 betas, a new Developer Preview lets any app integrate with Siri AI, the more conversational and personal version of Siri that shipped with iOS 27 in September. Until now only certain categories, such as directions, to-do lists, messaging and audiobooks, could plug in, and Apple says thousands of developers already have integrations of that kind.

The work goes through App Intents, Apple’s existing framework for exposing an app’s content and actions to the system. With the preview, apps can offer custom actions such as checking a delivery, booking a reservation or placing an order, and those actions get Siri AI’s personal context, onscreen awareness and natural-language understanding for free. Developers can also write “skills” that teach Siri to chain several actions into one response to a complicated request, and can put any entity in the Spotlight semantic index rather than only those that fit an existing schema. Apple’s own Calendar, Files, Mail, Maps, Messages, Notes, Photos, Reminders, Safari and Shortcuts already work this way; its examples include finding a coffee shop visited the week before and archiving files that have not been opened in over a year. The Siri AI Developer Preview documentation covers the new APIs and how to evaluate an app’s Siri experience.

The schedule is staged. The preview is available now in the developer betas, App Store submissions open in the spring, and Siri AI app intents reach customers “in a few months,” according to Apple. Supported languages are English, French, Japanese, Korean, Portuguese and Spanish, with Traditional Chinese, Norwegian, Turkish and Vietnamese to follow. The features need an Apple Intelligence-capable device, are not available to users under 13, and are not available in the EU on iPhone, iPad or Apple Watch while Apple works with regulators there. Server-based features, Siri AI included, are subject to daily limits, and Apple says expanded access will be available for a fee in the future. Apple engineers are holding online labs for developers on 4 and 5 November.

Apple’s latest annual report on Form 10-K sets out what can go wrong once assistants act inside apps. As CNBC reported, the filing warns that AI agents could behave in “unintended or unpredictable ways,” including “taking actions that were not directed, instructed or authorized,” which could lead to lawsuits or reputational harm, and that Apple’s ability to oversee and control third-party agents “may be limited.” CNBC notes that Siri AI does not run autonomously for long stretches the way some rival agents do, and that chief executive John Ternus calls Apple’s access to on-device personal data a “core differentiator.”

The two documents describe the same trade-off from opposite ends. Opening Siri to every app is what turns it from a voice front end into something that can actually order the food or move the booking, the gap Apple has been closing since it unveiled Siri AI at WWDC in June. Each new action an app hands over is also another way for Siri to do something its user did not quite ask for. App Intents leaves the developer to decide which actions Siri may take, and the spring submission window will show how many of them choose to let it.