Apple opens Siri AI to all developers, letting any app on iOS 27.3 beta and other 27.3 OS betas bring its content and actions into Siri AI by using App Intents

Apps on your iPhone and other Apple devices can now respond to your voice commands through Siri, without you needing to open them.

Apple has opened its new Siri AI capabilities to all third-party developers via a developer preview of iOS 27.3, iPadOS 27.3, macOS 27.3, and visionOS 27.3 betas. Developers can now use App Intents to integrate their app's content and actions directly into Siri AI. This integration allows Siri AI to understand and execute custom actions from any app, such as checking a delivery or booking a reservation, using natural language and personal context. The preview also introduces 'skills' for combining multiple actions into single experiences and allows Siri AI to surface any entity from the Spotlight semantic index, not just those fitting a predefined schema. Apple has already integrated these capabilities into many of its own apps, including Calendar, Mail, and Photos. Developers can build and test these integrations before they ship to customers in a few months, with App Store submissions opening in the spring. Siri AI is available in several languages but is currently unavailable in the EU.

This move democratizes access to advanced AI features previously locked within Apple's ecosystem, enabling a richer, more interconnected user experience. By allowing any developer to leverage Siri AI's contextual understanding and natural language processing, Apple is fostering a new wave of app innovation. Users can expect a more seamless interaction with their devices, as Siri AI will act as a unified interface to control a vast array of third-party functionalities. This strategy shifts the competitive landscape, forcing other platforms to consider similar open-API approaches for their AI assistants.

The introduction of 'skills' and expanded semantic indexing signifies a move towards more complex, multi-step AI workflows and a deeper understanding of user intent. Developers now have the tools to create sophisticated conversational experiences that can orchestrate actions across multiple applications. This enhanced capability for Siri AI to surface and act upon diverse data entities means that apps not explicitly designed for voice control can still become discoverable and controllable via natural language. As more developers adopt these tools, the utility and personalization of AI assistants will significantly increase across the Apple ecosystem.