Apple opens Siri AI to all developers in iOS 27.3 betas, eyes a more agentic Siri in 2027
Apple has opened its Siri AI developer preview to everyone. In the 27.3 betas for iOS, iPadOS, macOS and visionOS, released November 3, any third-party developer can build Siri AI support using App Intents. Integrations can use personal context, such as what is on screen and the user's data, and expose custom actions that Siri can call across apps. Developers cannot ship the feature to the public until Apple opens App Store submissions in the spring.
App Intents is Apple's framework for describing what an app can do in a structured way. Siri AI uses those descriptions as tools, similar to how language-model agents call functions. Developers have praised the Markdown-based Agent Skills specification and dynamic skill loading, which let Siri discover and use app capabilities without each one being hard-coded. Very Good Ventures published guidance urging app teams to prepare now.
The roadmap goes further. PCMag reports that Apple, now working with Google on its models, wants Siri to become significantly more agentic next year, and other reports say leadership is pushing to launch a fully autonomous Siri agent as early as 2027. Apple also cleared regulatory registration in Shanghai for Apple Intelligence on iPad and Mac, ahead of a December launch in China that uses Alibaba's Qwen models. Separately, Apple is preparing a Mac app that makes it easy to run local AI models, which drew strong enthusiasm on Hacker News and r/LocalLLaMA.
Caveats: Apple's AI timeline has slipped repeatedly, and a spring App Store opening means users will not see most third-party integrations for months. Agentic assistants that act across apps raise privacy and security concerns, especially given Apple's emphasis on privacy. Competitors are moving faster in some areas, with OpenAI building commerce agents into ChatGPT and Google integrating Gemini across Android. Watch for the spring submission window, which apps commit early, and whether the 2027 agentic Siri arrives on schedule.