When Tim Cook walks on stage at 10:00 a.m. Pacific tomorrow to open Apple’s 37th Worldwide Developers Conference, the headline feature of the rebuilt Siri won’t be Apple’s. It’ll be Google’s. The cloud brain inside the new assistant is a custom 1.2-trillion-parameter Gemini model that Apple is paying Google roughly $1 billion a year to license, a scale of spend and a parameter count CNBC reports as new detail on the partnership Apple first acknowledged in January 2026.

That sentence does a lot of structural work. Apple, the company whose entire brand premise is vertical integration and on-device intelligence, is renting its flagship AI from its largest search-deal counterparty. Bloomberg’s Mark Gurman frames the keynote as a redemption arc, two years after an Apple Intelligence rollout plagued by subpar technology and delayed features. The redemption, it turns out, is outsourced.

The product surface is broad. iOS 27, iPadOS 27, macOS 27, tvOS 27, watchOS 27, and visionOS 27 all ship in the fall after developer betas seed tomorrow and public betas arrive in July. macOS 27 gets what Bloomberg and MacRumors describe as a slight redesign focused on readability of Liquid Glass transparency, and Intel Mac support is being dropped. TechCrunch reports a new Visual Intelligence section inside the Camera app, powered by Google Image Search, sitting beside Photo, Video, Portrait, and Panorama as a dedicated Siri mode.

Then there’s the standalone Siri app. Bloomberg has seen a mockup: dark colors with no light mode, accents mirroring Apple’s WWDC imagery, an “Ask Siri” bar on open, a paperclip for attaching images, PDFs, and documents. It looks, by description, like ChatGPT or Claude or Gemini. The Wall Street Journal reports it may carry a paid tier. A Siri-tied smart home hub is also queued up, and the Vision Pro gets its share of attention.

The financial frame is where the keynote really lives. Wedbush’s Dan Ives told CNBC eventual monetization of Siri and AI could add $75 to $100 to Apple’s share price, and is “not being factored into shares.” That’s the bet Cook is closing his tenure on: that the market will eventually reward an AI strategy whose engine room belongs to Google.

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