Apple has opened Siri AI to every developer, in preview. In a developer news post dated November 3, 2026, titled "Siri AI is now open to all developers", Apple said a new Developer Preview in the iOS 27.3, iPadOS 27.3, macOS 27.3 and visionOS 27.3 betas "enables any developer to integrate their app with Siri AI, giving businesses and developers new ways to reach and serve their customers."

This is a developer preview, not a release to users. Apple says it "provides early access before first shipping to customers in a few months", with "submission to the App Store opening up in the spring". Apple's documentation adds: "The Siri AI Developer Preview isn’t available to external testers in TestFlight or to versions of your app that you publish on the App Store."

#What does the developer preview do?

Apple describes Siri AI as "an entirely new version of Siri that is profoundly more capable, conversational, and personal". The preview "allows any app to bring its content and actions directly into Siri AI by using App Intents, making it easier for all apps to tap into Siri AI’s newest capabilities, including personal context understanding, onscreen awareness, natural language, and more," Apple says.

The pieces Apple lists:

  • Custom actions. "So people can just ask for help in their own words, and Siri AI carries out any custom action you’ve built, from checking a delivery to booking a reservation to placing an order."
  • Skills. "For complex requests, we’re also introducing skills to let you teach Siri AI how to combine several actions into a single experience." Apple's documentation calls these app skills.
  • Spotlight. "And Siri AI can now surface any entity in the Spotlight semantic index, not just the ones that fit an existing schema."
  • Card snippets. "Siri displays custom content a person requests in card snippets that you provide." Those snippets "use your custom views to show your app’s branding and personality."
  • Cross-app actions. "Siri can find custom content from one app, transfer it to a specified app, and perform an action."

Apple's documentation sets a limit: "Siri can only find custom content and perform custom actions an app makes explicitly available using App Intents."

#Do users have to name the app?

Not always. Apple's documentation says: "People don’t have to mention your app in their request while your app is in the foreground, while a Live Activity is active, or when a person continues a conversation in the Siri app that includes a mention of your app." When an app is in the background, Siri can act "if someone mentions your app in their request."

Apple's example is a ride-share app. A person requests a ride, follows the Live Activity while waiting, then says "Hey Siri, change my ride pickup to a new address."

Apple is also adding the capabilities to its own apps. It says it "started rolling out these new capabilities across many Apple apps, including Calendar, Files, Finder, Journal, Mail, Maps, Messages, Music, Notes, Photos, Preview, Reminders, Safari, Shortcuts, and Weather".

#How do developers build and test it?

"You don’t need to add a new entitlement or join a separate developer program," Apple's documentation says. Testing is limited to builds developers control:

  1. Build. "Build your app with Xcode, sign it with a development profile, and run it on a device that supports the Siri AI Developer Preview."
  2. TestFlight. "Make versions of your app available to internal testers in TestFlight."
  3. Tools. Apple lists the Siri Integration Advisor in Xcode, which "provides feedback and suggestions", and the Siri Evaluations framework, which "lets you script requests to Siri, measure how Siri handles them, and catch changes in how Siri responds as you update your intents and entities."

Apple warns: "During the preview, App Intents API and Siri functionality may change." It also says it "will follow up with more details about the terms and usage policies for experiences enabled through Siri AI."

Apple is running Apple Intelligence Group Labs with its engineers on November 4, 2026, from 9 to 10 a.m. PT (10:30 to 11:30 p.m. IST), and on November 5, 2026, from 6 to 7 p.m. PT (7:30 to 8:30 a.m. IST on November 6).

#What are the requirements and limits?

Apple's footnotes list these conditions for Siri AI:

  • Devices. Siri AI "requires an Apple Intelligence-enabled device set to a supported language." Apple's footnote lists watchOS 27.3 for Siri AI in beta, but the developer preview names only iOS, iPadOS, macOS and visionOS.
  • Languages. "Siri AI is available in many languages, including English, French, Japanese, Korean, Portuguese, and Spanish and will soon expand to support Traditional Chinese, Norwegian, Turkish, and Vietnamese."
  • EU. "Siri AI is currently unavailable in the EU in iOS, iPadOS, and watchOS," Apple says, adding that it "is working constructively with the EU in an attempt to find a path forward."
  • Age. "Siri AI is not available for users under 13."
  • Usage limits. Apple says features that rely on server-side models, including Siri AI, "are subject to daily usage limits", and "Expanded access to such features will be available for a fee in the future." It gives no price.

#How does it compare?

The Verge framed the news as Apple letting "Siri AI perform actions across third-party apps." The Verge reported that Apple previously made a smaller set of features available to third-party developers. Apple's post says "Thousands of developers have already built integrations with Siri".

The developer preview arrives in the same iOS 27.3 beta cycle as the Apple Watch features in our story on Live Rewind and Siri Recap entering developer beta. For Siri AI's earlier controls, see iOS 27.2's Siri AI and Excluded Apps.

Our analysis: The notable change is scope. Siri AI's reach extends beyond the system-defined app schema domains Apple's documentation mentions, to custom actions and content from any app. The no-entitlement rule lowers the barrier further. The limits are just as clear: no App Store builds, no external testers, APIs that may change, and terms Apple has not published. Developers get a head start, while users get nothing from third-party apps until Apple ships to customers.

#What is unclear?

  • Ship date. Apple says only "in a few months" for customers and "in the spring" for App Store submission.
  • Terms. Apple has not published the terms and usage policies.
  • Pricing. No price for the future paid expanded access.
  • EU. No timeline for Siri AI in the EU on iOS, iPadOS and watchOS.