Siri AI Will Have Deep Integration With ChatGPT and Claude Models, Leaked Build Shows
Apple is preparing to let Siri use third‑party AI models like ChatGPT and Claude, potentially replacing its own engine. Leaked code shows a delegation system where Siri forwards tasks to external models while handling proprietary data itself. The change is driven by EU regulations and could give Op…
Apple’s latest iPhone 18 Pro launch highlighted a major shift for its long‑mismatched voice assistant. The company is reportedly giving Siri the ability to tap into third‑party AI models, most notably OpenAI’s ChatGPT and Anthropic’s Claude. According to a leak on X by the frequent iOS code‑leaker pdfu, the new architecture lets users choose which model powers their voice interactions, or even replace Siri entirely with a GPT‑based agent.
How the New Siri Architecture Works
The leaked private frameworks for iOS 27 and macOS Golden Gate reveal a feature called “model delegation.” In practice, Siri acts as a gateway: it receives a user’s request, decides whether the request needs access to Apple‑specific data, and then forwards the rest to a chosen third‑party model. In a video posted by pdfu, a user asked Siri to create a reminder. Siri routed the request to Claude, which handled the reminder creation inside the Reminders app. The model then returned a confirmation to Siri, which spoke it back to the user.
When the user’s request involves sensitive system information—such as reading emails or accessing contacts—Siri stays in the loop. In another demo, the leaked GPT‑5.6 model was used to search the user’s local inbox, locate a specific email, and draft a reply in iMessage. The model’s output was logged in OpenAI’s web interface, allowing the user to retrieve it later from any device.
Why Apple Is Opening the Door to External Models
Apple’s move is not simply a marketing gimmick. The European Union’s Digital Markets Act (DMA) now requires large platform operators to grant third‑party developers equal access to their hardware and software ecosystems. The DMA specifically targets AI assistants like Siri and Google’s Gemini, mandating that Apple provide a way for external AI services to run on‑device. By building a delegation layer, Apple can comply with the DMA while still maintaining control over core system functions.
From a business perspective, allowing ChatGPT and Claude to run on iPhones could be a strategic win for Apple. It keeps the iPhone ecosystem attractive to developers who want to leverage cutting‑edge AI without building their own models from scratch. At the same time, it opens a new revenue stream: Apple could charge a fee for hosting third‑party models or for providing the necessary APIs.
Implications for OpenAI and Anthropic
For OpenAI and Anthropic, the announcement is a potential game‑changer. The iPhone’s massive user base—over a billion active devices worldwide—offers an enormous market for AI services. By gaining on‑device access, these companies can deliver faster, more privacy‑respectful experiences than cloud‑only solutions, which is a key selling point for Apple’s privacy‑centric brand.
Both firms are already racing to develop more advanced models. OpenAI’s GPT‑5.6 and Anthropic’s Claude are already showing significant improvements in natural language understanding and task execution. If Apple’s integration is successful, it could accelerate the adoption of these models across the global consumer market.
What’s Next for Siri and the iPhone Ecosystem
Apple has not yet announced a public release date for the new Siri architecture. The company is likely testing the feature internally and with select developers before a wider rollout. If the integration goes live, users will be able to switch between Siri’s native model and external options via a simple setting in the Settings app.
Meanwhile, regulators will be watching closely. The DMA’s enforcement mechanisms mean that Apple could face penalties if it fails to provide a truly open platform for AI developers. Conversely, a successful partnership with OpenAI and Anthropic could set a precedent for other tech giants to follow suit, potentially reshaping the competitive landscape for AI assistants.
In short, Apple’s decision to let Siri delegate to ChatGPT and Claude marks a significant step toward a more open, AI‑powered ecosystem. It could benefit consumers with richer voice interactions, give developers new tools to build smarter apps, and keep Apple at the forefront of the AI revolution.
Why it matters
Apple’s integration of third‑party AI models into Siri could redefine the iPhone assistant experience, offering users more powerful and privacy‑respectful interactions while opening new opportunities for AI developers.
Key points
- Apple is enabling Siri to use OpenAI’s ChatGPT and Anthropic’s Claude via a new delegation system.
- The system lets Siri forward tasks to external models while handling sensitive data internally.
- The change is partly driven by the EU Digital Markets Act, which demands open access for AI services.
- OpenAI and Anthropic stand to gain a massive user base if their models run on‑device.
- Apple may monetize the feature by charging for hosting or API access.
- The rollout is still in testing; a public release date has not been announced.
Frequently asked questions
Will users be able to choose which AI model Siri uses?
Yes, Apple plans to allow users to switch between Siri’s native model and external options like ChatGPT or Claude through a setting in the Settings app.
Does this mean Siri will disappear?
No. Siri will still handle requests that need access to proprietary Apple data, while delegating other tasks to third‑party models.
Is Apple complying with the EU Digital Markets Act?
The new delegation feature is designed to meet DMA requirements by giving developers equal access to on‑device AI services.
