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Apple just rebuilt Siri with Google Gemini — your iPhone AI is about to change

June 29, 2026 · 6 min

Marcus Vale & Ben Okonkwo

Apple's iOS 27 integrates Google Gemini as the engine behind Siri, under a multi-year licensing deal reportedly worth roughly $1 billion per year. On the same day, Apple shipped an Extensions framework letting users swap Gemini out for Claude or ChatGPT — a built-in kill switch that effectively undermines Gemini's exclusivity from launch.

At WWDC 2026 on June 8, Apple unveiled a completely rebuilt Siri for iOS 27, powered by Google's Gemini AI technology.

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About this episode

At WWDC 2026, Apple announced that Siri is now built on Google Gemini — a multi-year deal reportedly worth around a billion dollars a year. The easy read is that Apple blinked. But the episode pushes on a tension that's harder to dismiss: on the exact same day, Apple shipped an Extensions framework letting users swap Gemini out for Claude or ChatGPT on the fly. A billion-dollar commitment and a kill switch, announced in tandem. The episode works through what the architecture actually means — a hybrid system where simple tasks run on-device and complex queries route silently to the cloud, with the user none the wiser about which model fired. It traces the historical echo: Google used to pay Apple billions to be Safari's default search engine. Now the money flows the other way. Apple has run this playbook before with Maps, licensing third-party tools while quietly building the infrastructure to eventually cut them loose. There's also an honest look at what remains genuinely unresolved: the privacy boundary between Apple's Private Cloud Compute and Google's infrastructure is asserted by Apple but hasn't been independently verified. And the contract — which nobody outside the two companies has read — likely determines whether this whole arrangement is a strategic placeholder or an expensive dependency. That single document, the episode argues, is where the whole story lives.

Frequently asked

Did Apple replace Siri with Google Gemini in iOS 27?

Apple rebuilt Siri's cloud intelligence on Google Gemini technology in iOS 27, announced at WWDC 2026. Apple branded the result 'Apple Foundation Models' (AFM Cloud Pro), reportedly running at 1.2 trillion parameters on Nvidia GPUs. Apple's official statement called Google's technology 'the most capable foundation' for those models.

How much is Apple paying Google for the Gemini deal?

Apple's licensing arrangement with Google for Gemini technology is reported to cost roughly $1 billion per year, a multi-year commitment. This inverts the longstanding arrangement in which Google paid Apple billions annually to remain the default search engine on Safari.

Can you switch Siri away from Gemini on iOS 27?

Yes. iOS 27 ships with an Extensions framework using a standardized API that lets users swap the underlying AI model — replacing Gemini with Claude, ChatGPT, or other supported providers on demand. Apple announced this on the same day as the Gemini integration, making Gemini's exclusivity effectively nonexistent at launch.

How does Siri decide when to use Gemini vs. the on-device chip in iOS 27?

iOS 27 Siri uses a hybrid architecture: simple tasks like timers, alarms, and messages are handled locally by the iPhone's on-device chip. Complex requests — such as drafting a legal summary from a photographed document — are routed to Gemini in the cloud via Apple Foundation Models Cloud Pro.

Is Apple's use of Gemini in Siri a privacy risk?

Apple asserts that Private Cloud Compute maintains strong privacy standards even when Siri queries route through Google's infrastructure, citing real encryption. However, the precise boundary of what data Google can access has not been independently verified — Apple's privacy claims rest on Apple's own disclosures, not third-party audits.

Grounded in 10 sources
Apple partnering with Google and Nvidia for most advanced AI model · cnbc.com
Apple picks Google's Gemini to run AI-powered Siri coming this year · cnbc.com
As OpenAI leans into enterprise business, Apple and Google set sights on the masses - CNBC · cnbc.com
Apple releases iOS 26.5.2 for iPhone, here’s what’s new - 9to5Mac · 9to5mac.com
Apple working to cram massive Gemini model into iPhone to power new Siri - Ars Technica · arstechnica.com
Apple is handing AI power to its rival Google - The Business Times · businesstimes.com.sg
Apple's AI Overhaul Signals a Defining Shift for the Smartphone - CNET · cnet.com
Apple Finally Added These iOS 27 Features. Android Users Wonder What Took So Long | PCMag · pcmag.com
Why Apple’s slow-and-steady AI bet is starting to look pretty smart - TechCrunch · techcrunch.com
苹果iOS 27及新Siri或于2026年WWDC亮相 采用深色界面-一帆顺风网 · 8.bhfxcy.com
Read transcript

Ben Okonkwo: Hey, good to be back — okay, I went down a rabbit hole on this Apple-Google deal and I think I've been reading it backwards the whole week.

Marcus Vale: Backwards how?

Ben Okonkwo: So, Tim Cook at WWDC 2026 — June eighth, reportedly his last one as CEO — stands up and says Siri is rebuilt on Google Gemini. Multi-year licensing deal, roughly a billion per year. And I kept framing that as Apple losing ground. Apple going to Google, hat in hand.

Marcus Vale: That's the wrong frame, yeah.

Ben Okonkwo: Right, because here's what I missed — Google has been paying Apple to be the default search engine on Safari. For years. Billions flowing from Google to Apple. Now it's flipped. Apple's paying. And in the same iOS 27 announcement, they drop an Extensions framework where users can just... swap Gemini out for Claude or ChatGPT on the fly. So Apple's billion-dollar commitment and Apple's kill switch shipped on the same day. That tension is what I want to actually understand.

Marcus Vale: The kill switch is the story. Not the deal.

Marcus Vale: Think of it like your phone's camera. Simple shots: local chip, instant. Low-light panorama of a dark stadium: it ships that to a server farm, processes it, sends back the result. Siri on iOS 27 works exactly like that. Timers, messages, setting an alarm — local chip handles it. You ask Siri to draft a legal summary of a contract you photographed — that routes to Gemini in the cloud. That's the whole architecture.

Ben Okonkwo: And the cloud end is... Apple built that themselves?

Marcus Vale: That's exactly the admission. Apple Foundation Models — AFM Cloud Pro — runs on Nvidia GPUs and is built on Gemini technology. Apple branded it. But the foundation is Google's.

Ben Okonkwo: Hm. So the model they're calling an Apple Foundation Model is... Gemini, essentially, with Apple's name on it.

Marcus Vale: Roughly 1.2 trillion parameters, reportedly. And Craig Federighi walked through this hybrid architecture at a WWDC tech talk — he didn't hide it. Apple's official statement says Google's technology provides, quote, 'the most capable foundation' for Apple Foundation Models. That sounds like a strategic choice. Sourced reporting says they couldn't build fast enough alone. Those are — frankly, those are two different things.

Ben Okonkwo: Wait — 'most capable foundation' versus 'couldn't build fast enough.' One is a preference, one is a ceiling.

Marcus Vale: Exactly. And Apple controls which story gets told publicly. But the billion dollars per year is the tell — you don't pay that if you had a capable alternative sitting in a lab somewhere. That's competitive necessity dressed as strategic choice. Classic Apple PR, basically.

Ben Okonkwo: Okay, picture Tuesday morning. 8:47 AM. Someone's running late, asks Siri something complicated — summarize this contract, draft a reply to this email, whatever. And iOS 27 just... silently decides. Gemini handles it. Or Claude. Or ChatGPT. The user might not even know which one fired.

Marcus Vale: That's the App Store moment. Apple doesn't care which model wins that query. Apple is the routing layer.

Ben Okonkwo: Right, and that's — wait, that's exactly what makes the billion-dollar Gemini deal weird. The Extensions framework uses a standardized API. Anthropic's Claude is in there. OpenAI's ChatGPT is in there. The moment that ships, Gemini's exclusivity is basically... gone? On day one?

Marcus Vale: Self-undermining by design. And Apple has done this exact play before — Maps. Licensed third-party routing for years, called it user choice, quietly built alternatives, then killed the deals. Mark Gurman's been reporting the architecture of this Google arrangement and I'd bet there's a kill clause in there indexed to exactly that migration.

Ben Okonkwo: Hm. So Apple's potentially paying Google a billion a year to be the default while actively building the infrastructure to route users away from Google.

Marcus Vale: Basically, yeah.

Ben Okonkwo: And then there's the privacy piece, which I don't think is resolved at all. Apple says Private Cloud Compute maintains industry-leading privacy standards — but that Tuesday-morning query just routed through Google's infrastructure. The precise boundary of what data Google actually sees? That's asserted by Apple. It hasn't been independently verified. I mean, the encryption is real, I'm not saying it isn't, but — those two claims sitting next to each other, I genuinely don't know how they're both true.

Marcus Vale: The privacy thing is real but — frankly, it's a distraction from the actual unresolved question. Which is: does Apple's contract with Google have a performance kill clause or not? Because those are two completely different situations. If Claude or ChatGPT benchmarks higher on iOS 27 tasks next year and Apple can walk, this whole deal is a billion-dollar placeholder while in-house models catch up. If there's no exit provision tied to performance... Apple just committed real money to a provider that users can route around on day one.

Ben Okonkwo: And we don't know which one it is.

Marcus Vale: Nobody outside Apple and Google has read that contract. That's where the whole episode lands, honestly. Apple Intelligence isn't really about Gemini — the bet is that Apple owns the layer above every model. Gemini, Claude, ChatGPT, whatever ships in two years. The platform extracts value regardless. But that only works if the contract gives them room to move. If it doesn't — I mean, they're already deepening a financial dependency on the same company that's been paying them billions for Safari search defaults. The EU antitrust people are not going to miss that symmetry.

Ben Okonkwo: One contract nobody's read, and it answers basically everything. Whether this was genius or desperation — same document. I'll sit with that.