Apple Rents Siri’s Brain From Google in a Reported $1B-a-Year Gemini Deal

The dek: Cupertino is now leaning on a 1.2-trillion-parameter Gemini model to power the new Siri it showed at WWDC 2026. The arrangement keeps user data on Apple's own servers, but it quietly admits a harder truth: Apple's in-house models still cannot do the job alone, and closing that gap will be expensive and slow.

For a company that has spent a decade insisting its silicon and software are inseparable, the headline out of WWDC 2026 is jarring. The Siri that Apple demoed on June 8 does not think with Apple's models. It thinks with Google's.

According to reporting confirmed at the keynote, Apple licensed a custom version of Google's Gemini for a figure put at roughly $1 billion per year, an agreement first struck in January 2026. The model behind the rebuilt assistant is described as a 1.2-trillion-parameter Gemini variant, dwarfing anything Apple has shipped under the Apple Foundation Models banner. The new Siri arrives as a standalone, chatbot-style app with a "Search or Ask" gesture, Dynamic Island hooks on newer iPhones, and access to personal context across mail, photos, messages, calendar, and files.

The gap the deal exposes

Strip away the polish and the deal is a confession. Apple Intelligence launched to a lukewarm reception, and the genuinely conversational Siri promised in 2024 kept slipping. Renting a frontier model is the fastest way to ship something competitive now, but it concedes that Apple's own foundation models are not at the frontier and were not going to get there on the original timeline.

The privacy framing softens the blow. Apple says the heavy Gemini reasoning runs inside its Private Cloud Compute infrastructure, on Apple-controlled servers rather than Google's, with outside auditors able to verify the promise. That is a real distinction, and it is the lever Apple is pulling to justify the dependency. But it does not change who built the brain.

The cost of catching up

A reported $1 billion a year is the visible price. The invisible one is strategic. Apple now has a recurring line item paid to a direct rival in phones, search, and advertising. It also hands Google a reference customer that validates Gemini at the scale of a billion-plus active devices.

Apple did hedge. Inside Apple Intelligence, users can pick their provider, choosing among ChatGPT, Gemini (set as the default), or Anthropic's Claude across iOS 27, iPadOS 27, and macOS 27. That optionality is smart insurance, but it also underlines the point: the intelligence layer is increasingly something Apple curates rather than owns.

A reset under incoming CEO John Ternus

The timing is loaded. Tim Cook delivered his final WWDC keynote as CEO, with hardware chief John Ternus set to take over on September 1, 2026. Ternus inherits a Siri that works because of an outsourcing deal, not because of an Apple breakthrough.

That makes the on-device AI question the defining one of his early tenure. Apple's whole pitch has been that the most personal computing should run on hardware it designs end to end. For now, the most personal feature on the iPhone runs on a rival's model in Apple's cloud. Whether Ternus treats that as a stopgap or a new normal is the story worth watching.

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Fontes

• https://techcrunch.com/2026/06/09/wwdc-2026-everything-announced-on-siri-ai-os-27-apple-intelligence-and-more/
• https://www.buildfastwithai.com/blogs/ai-news-today-june-8-2026