Apple is preparing a major change to Siri by allowing third-party artificial intelligence chatbots to connect with the assistant through a new extensions system. The plan was being shaped as Apple engineers worked on a framework that would let users enable outside models from system settings. The move would mark a sharp break from the older Siri model, which kept most assistant behavior inside Apple's own software stack. By March 27, 2026, the project had become a test of whether Apple could open an AI layer without surrendering the device experience.
The change reflects a practical reality for the iPhone maker on March 27, 2026. Siri remains deeply integrated into Apple devices, but dedicated AI assistants from other companies have moved faster in long-form reasoning, writing support and flexible conversation. Opening Siri to outside models lets Apple preserve the assistant as the entry point while letting users choose which AI system handles harder requests.
That approach also protects Apple's platform role. If users are already installing AI apps from Google, Anthropic, OpenAI or smaller developers, Apple can either let those tools sit outside the operating system or make them part of the device experience. Extensions would keep the routing, permissions and interface under Apple control.
Developers will watch the approval rules closely. If Apple treats AI extensions like ordinary apps, the market could become crowded quickly. If it limits access to a smaller set of vetted partners, the feature may feel safer but less open. Either choice will attract scrutiny because AI assistants can influence search behavior, productivity workflows and subscription revenue. The company also has to decide how results are labeled. Users should know when an answer comes from Apple software and when it comes from an outside model. Without that transparency, mistakes may be blamed on Siri even when another provider generated the response.
Siri Becomes a Routing Layer
The most important shift is conceptual. Siri would no longer need to be the only intelligence on the device. It could become the layer that understands the user's command, checks permissions and then sends a specific task to the selected model. A writing request might go to one chatbot, a coding question to another and a personal-device action back to Apple's own systems.
That flexibility could make Siri more useful without requiring Apple to win every model race internally. It also gives developers a reason to compete inside Apple's ecosystem instead of trying to pull users into separate apps. For consumers, the best version of the system would feel like choice without extra friction. The technical challenge is latency. If Siri has to contact a third-party server, wait for model output and then return the answer inside a system interface, slow responses will make the feature feel broken. Apple will need strict performance rules before it lets outside assistants become part of daily device use.
Privacy Rules Will Define the Feature
Apple's strongest brand advantage is privacy, which makes third-party AI integration sensitive. Users may ask Siri about calendars, messages, photos, health data or work documents. Sending any of that context to an outside model requires clear permissions, visible controls and limits on data retention.
The company is likely to require explicit opt-ins for each chatbot. It may also restrict which data categories can be shared and force developers to disclose how prompts are stored or used for training. Without those guardrails, Apple risks turning a convenience feature into a privacy liability. Enterprise customers will be especially cautious. Companies that manage iPhones for employees may want the ability to block certain chatbots, approve only selected vendors or keep requests inside private cloud environments. Siri extensions will therefore have to work for both consumers and managed devices.
Google and Anthropic Gain a New Door
For AI competitors, Siri integration would be valuable distribution. Google already has a large iPhone presence through search, maps and apps. Anthropic has positioned Claude as a workplace and coding assistant. Other providers would see the iPhone as a channel where model quality, brand trust and subscription design can be tested directly against rivals. The competitive tension is obvious. Apple would be giving rivals access to one of its most visible interfaces, but only on terms it controls. That is similar to the App Store model: outside developers can reach Apple's users, but Apple sets the rules, collects leverage and protects the system experience.
The feature could also reshape paid AI subscriptions. If users can invoke a preferred assistant through Siri, the value of a standalone chatbot app changes. Providers may compete on speed, reliability, privacy promises and specialized skills rather than only on the quality of a separate chat window. Apple will have to police that marketplace carefully. A bad extension that returns unsafe advice, mishandles private data or breaks device actions would damage trust in Siri even if Apple did not build the model. That is why approval rules and visible permission controls are not side details; they are the product.
What Users Should Expect
The feature will succeed only if it feels ordinary. Users should not have to understand model routing to benefit from it. They should be able to choose preferred assistants, revoke access quickly and see when a request is leaving Apple's own systems.
If Apple executes well, Siri could become less of a single assistant and more of a trusted switchboard for AI tasks. If the controls are confusing or the responses feel inconsistent, the feature could reinforce the perception that Apple is following the AI market rather than shaping it. The stakes are therefore larger than one Siri upgrade. This is a test of whether Apple can turn openness into a controlled advantage.