Apple iOS 27 Extensions: Siri becomes a multi-provider AI hub — Claude, Gemini, Grok replace ChatGPT

Apple iOS 27 Extensions : Siri becomes a multi-provider AI hub — Claude, Gemini, Grok replace ChatGPT

🔎 The end of OpenAI's monopoly on the iPhone

On June 8, 2026, Apple unveiled iOS 27 at WWDC, and the announcement shook up the AI ecosystem. Siri is no longer tied to ChatGPT. It becomes an open hub where each user chooses their preferred AI model — Claude, Gemini, Grok, or others — as the default engine for voice queries, Writing Tools, and Image Playground.

This is a paradigm shift. Apple transforms Siri into an intelligent router rather than a proprietary assistant. And the 30% tax on every AI subscription sold through this channel could redefine the consumer AI economy.

The key points

• Siri Extensions: iOS 27 opens Siri to all third-party AI models via a marketplace API. ChatGPT loses its exclusive status.
• Gemini as backbone: Siri is rebuilt on a 1.2-trillion-parameter Google Gemini model, executed via Apple Private Cloud Compute.
• SiriKit is dead: The framework is formally deprecated. App Intents becomes the sole channel for app-Siri interaction. Migration is mandatory.
• Distribution tax: Apple collects 30% on every AI subscription sold via Extensions, across 2.5 billion active devices.
• Distinct voices: Each AI model has its own vocal signature, so the user always knows who is responding.

Recommended Tools

AI subscription prices verified on the respective websites (June 2026, check on openai.com, anthropic.com, etc.).

Siri rebuilt on Gemini: the Google-Apple deal dissected

Siri no longer runs on an in-house model. Apple made the radical choice to rebuild the assistant on a Google Gemini model with 1.2 trillion parameters, executed in Apple's private cloud (Private Cloud Compute).

Craig Federighi detailed this collaboration during a post-keynote tech talk at WWDC 2026, explaining that the integration goes well beyond a simple commercial partnership (9to5Mac, June 8, 2026). It is an architectural fusion: Gemini handles the heavy reasoning, Apple handles the orchestration, privacy, and user context.

This choice is strategic. Rather than investing billions in a proprietary model that would always be playing catch-up, Apple outsources the compute and keeps control of the distribution. It's the same logic as with its chips: Apple doesn't manufacture its components, it assembles them better than anyone else.

The result is a noticeably more capable Siri, but whose brain belongs to Google. This raises a question of dependency that very few commentators have brought up.

To understand how this pivot fits into Apple's broader strategy around Gemini, our article on the Siri revolution with Gemini and the Dynamic Island details the key announcements from this WWDC.

Extensions: Apple's AI marketplace

The Extensions system is the real strategic novelty of iOS 27. Concretely, it's an API that allows any AI model provider to plug directly into Siri, Writing Tools, and Image Playground.

Claude, Gemini, Grok, Perplexity, Microsoft Copilot, Meta AI, Amazon Alexa — all can become the default engine of the iPhone's voice assistant. ChatGPT becomes one option among others, not the default choice (ZestLab, June 2026).

How it works is simple. The user opens Settings > Siri > AI Model, and chooses their provider. Once selected, all Siri requests are routed to this model. The switching is instantaneous, without restarting.

Apple also implemented a distinct "voice" system for each model. When Claude answers, the voice is different from when Gemini answers. The user always knows which model handled the request (MacLogin, June 2026).

This is a UX stroke of genius. Apple avoids the "black box" trap where the user doesn't know who is speaking. And each provider can theoretically customize its voice to reinforce its identity.

The multi-model matrix: which one for which use?

Apple isn't forcing a single model. The system allows for differentiated routing: one model for code, another for writing, a third for real-time queries.

According to the comparative matrix published by MacLogin, here are the most logical configurations based on current benchmarks:

This flexibility changes the game. The user is no longer locked into a single AI ecosystem. They build their stack the same way they would set up a plugin suite.

To compare these models outside the Apple context, our guide Google Gemini vs ChatGPT vs Claude : lequel pour quel usage ? offers a detailed comparison of each one's strengths.

Mandatory App Intents, SiriKit is dead: the countdown has begun

If you're an iOS developer, the biggest news from WWDC 2026 isn't Gemini. It's the death of SiriKit.

The SiriKit framework, which allowed apps to expose voice shortcuts to Siri since iOS 10, is formally deprecated (ByteIota, June 2026). App Intents replaces it as the sole channel of interaction between apps and Siri.

The difference is fundamental. SiriKit was limited to predefined domains (messages, calls, payments, etc.). App Intents is open: any action in your app can become a Siri command, and now, any AI model can invoke it.

According to TechTimes, the migration countdown clock has started. Apps still using SiriKit will cease to function with voice commands in a future version of iOS. Migration is not optional.

Xcode 27 integrates automated migration tools and an on-device AI to help developers convert their intents (Lushbinary, June 2026). But the volume of work remains significant for apps with a lot of SiriKit integrations.

Apple made App Intents mandatory precisely because the Extensions system requires standardized middleware. Without App Intents, Claude or Gemini cannot trigger actions in your apps. It's the universal API that makes the hub possible.

The Apple tax: 30% on AI, 2.5 billion devices

This is the most explosive point, and yet the least commented on. Apple collects 30% of every AI subscription sold via the Extensions system, on 2.5 billion active devices (ABHS, June 2026).

Let's take a concrete example. If Claude Pro costs €20/month and a user subscribes via Siri Extensions, Anthropic gets €14 and Apple pockets €6. Without providing any model, without any computing, without any AI infrastructure. Just the distribution channel.

It's the same logic as the App Store, applied to AI. And it's all the more brutal because AI models are very high-margin products — computing costs have dropped drastically, yet prices remain high. Apple captures a disproportionate rent.

For AI providers, the dilemma is cruel. Refusing Extensions means disappearing from the iPhone — 2.5 billion users. Accepting means giving 30% of their recurring revenue to Apple. Some providers might try to circumvent this by directing users to the web, but Apple has historically blocked this kind of bypass.

According to Fello AI, this AI marketplace model could generate several billion in annual revenue for Apple by 2028, without Apple training a single model.

ChatGPT loses its exclusivity: what it really changes

Until iOS 26, ChatGPT was the only third-party AI model integrated into Siri. It was an exclusive partnership that gave OpenAI considerable visibility within the Apple ecosystem.

iOS 27 breaks this monopoly. ChatGPT becomes just one option among others in the Extensions panel (ZestLab, juin 2026). Not the default, not the preferred. Just a choice.

The impact for OpenAI is twofold. First, the loss of the distribution advantage: iPhone users will naturally discover Claude and Gemini via Siri settings, which will reduce ChatGPT's organic acquisition. Second, the 30% tax makes subscribing via Extensions less attractive than direct web.

For Apple, it's a strong signal of independence. By relying on Gemini as a backbone and opening the hub to everyone, Apple shows that no AI partner is indispensable. If OpenAI plays too hardball on terms, Apple can downrank it in suggestions.

Our comparison ChatGPT vs Gemini analyzes in detail how this change in distribution affects the competition between the two models. And for those hesitating between the two leaders, Claude vs ChatGPT remains the reference.

Private Cloud Compute : does the privacy promise hold up?

Apple runs the Gemini 1,2T model via its Private Cloud Compute infrastructure. The promise: query data is never stored, never shared with Google, and verifiable through external audit.

This is technically credible. Apple designed PCC so that even its own engineers cannot access data in transit. The Gemini model runs in secure enclaves, without logging, without persistence.

But there is an important nuance. When a user chooses Claude or GPT-5.5 via Extensions, the request leaves the Apple infrastructure to reach Anthropic's or OpenAI's servers. PCC only applies to native Gemini routing.

Apple clearly displays this distinction in the settings. But how many users will understand it? There is a real risk that a portion of the public will think that "Siri = Apple privacy" regardless of the selected model.

This lack of transparency could become a regulatory issue, especially in Europe where the GDPR requires informed consent.

Xcode 27: on-device AI for developers

Apple didn't just open Siri up to third-party models. Xcode 27 integrates an on-device AI that assists developers in migrating SiriKit to App Intents, creating new intents, and debugging Siri Extensions interactions (Lushbinary, June 2026).

Specifically, the Xcode assistant can analyze your existing SiriKit code and generate the App Intents equivalents automatically. It doesn't replace manual review, but it drastically reduces the migration work.

Xcode 27 also integrates a Siri Extensions simulator that allows you to test how each AI model (Claude, Gemini, GPT) interprets your intents differently. This is essential: GPT-5.5 and Claude Opus 4.7 do not always understand the same phrasing to trigger the same action.

For developers who also work on the web, our selection of the best LLMs for coding remains relevant for choosing a development model outside the Apple ecosystem.

Impact on the AI market: the hub vs. the model

iOS 27 Extensions marks a turning point in the industry. Until now, the AI competition was model against model. Apple is proposing a third way: becoming the routing infrastructure, the hub that produces nothing but distributes everything.

This is the Amazon strategy with AWS applied to consumer AI. AWS doesn't make databases, it hosts those of others. Apple doesn't make AI models, it routes those of others. And it taxes the transit.

AI providers have a maximum of two years to build direct distribution channels strong enough to withstand the Apple tax. Otherwise, they will become commodity providers in Apple's marketplace, with margins compressed by 30%.

This is also a signal for regulators. The opening of Siri could be presented as pro-competitive. But the 30% tax on an emerging market has the exact same anti-competitive structure as the App Store. The European Commission will surely look into it.

For users, the benefit is immediate: more choice, better service, increased competition. Our guide to the meilleurs LLM gratuits remains useful for those who want to test the models before subscribing via Extensions.

❌ Common mistakes

Mistake 1: Thinking Siri became intelligent on its own

Siri did not suddenly gain intelligence. Apple plugged a Gemini 1.2T model behind the Siri interface. Apple's voice assistant remains an orchestrator, not an engine. Confusing the two leads to unrealistic expectations about Siri's "offline" capabilities.

Mistake 2: Believing ChatGPT has been removed from iOS

ChatGPT is not removed. It is available in Extensions like the others. The mistake is thinking that Apple "fired" OpenAI. In reality, OpenAI lost its exclusive status, which is very different. The ChatGPT app remains available on the App Store.

Mistake 3: Migrating too late from SiriKit to App Intents

The deprecation is official. Apps that wait until the last minute will end up with broken voice features. The migration must start now, especially since Xcode 27 provides automation tools to speed up the process.

Mistake 4: Ignoring the 30% tax in your business model

If you are an AI provider and plan to distribute via Extensions without factoring in the Apple commission into your calculations, your margins will collapse. The tax must be passed on to the end customer or absorbed, but it cannot be ignored.

❓ Frequently Asked Questions

Can I use multiple AI models at the same time on Siri?

Yes, iOS 27 allows you to configure differentiated routing. You can assign Claude for writing, GPT-5.5 for agents, and Gemini for general voice queries. The switching is handled automatically based on the type of request.

Will SiriKit stop working immediately?

No, SiriKit is deprecated, not removed. Existing intents will continue to work temporarily. However, no new SiriKit features will be accepted, and complete removal is expected in a future iOS update. Migration to App Intents must begin now.

Does the 30% tax apply to existing subscriptions?

No, if you have an active Claude or ChatGPT subscription subscribed on the web, the tax does not apply retroactively. It only applies to new subscriptions made through the iOS 27 Extensions system.

Are my data protected when I use Claude via Siri?

Partially. The initial routing goes through Apple Private Cloud Compute, but the request is then forwarded to Anthropic's servers subject to the latter's privacy policies. Apple clearly displays this distinction in the settings, but PCC protection only covers the Apple segment.

Which models are confirmed at the launch of iOS 27?

According to ZestLab and MacLogin, Google Gemini and Anthropic Claude are confirmed as initial partners. GPT-5.5, Grok 4.1, and others are expected to follow quickly via Extensions updates.

✅ Conclusion

iOS 27 does not make Siri smarter — it turns it into an AI distribution platform with a 30% tax on 2.5 billion devices. Apple's real product is the hub, not the model. To dive deeper into the issues of this revolution, check out our full analysis of WWDC 2026 and the Siri redesign.