Apple plans to launch a standalone Siri app with iOS 27 in September 2026, allowing users to integrate third-party AI agents directly into the voice assistant, according to Bloomberg journalist Mark Gurman.

The new app will enable voice or text input and display full conversation history, mirroring interfaces used by ChatGPT, Gemini, and Claude. Users will add AI agents from any installed app directly into Siri, with all conversations saved and searchable. The feature will ship in iOS 27, iPadOS 27, and macOS 27.

Apple will introduce an "Extensions" framework that allows third-party chatbots and AI agents from installed apps to integrate into Siri. The company plans to create a dedicated App Store section for browsing and downloading these extensions, transforming the assistant into an AI integration marketplace. Developers will submit extensions that meet Apple's privacy and certification standards.

The marketplace is expected to feature productivity tools, language translators, creative assistants, and domain-specific chatbots. This follows patterns established by platforms like Alexa's skills certification process. Amazon supports multiple monetization routes for Alexa skills, though Apple has not disclosed monetization plans for Siri Extensions.

Siri will receive an updated design leveraging Dynamic Island, along with new system buttons labeled "Ask Siri" and "Write with Siri." Dynamic Island will display animated Siri prompts and support gestures for multitasking, allowing users to interact with queries without leaving their current app.

Apple will release the first iOS 27 beta to developers in June 2026, with public release scheduled for September 2026. The developer beta will enable early testing of the Extensions framework and the new Siri interface.

Device compatibility remains unclear. Apple has not confirmed whether these updates require Apple Intelligence support, currently limited to iPhone 15 Pro and newer models, or will be available on all iOS 27 devices.

When an extension is invoked, Siri will route the user's request to the appropriate AI agent and return the response within the interface. Based on Apple's typical privacy approach, users are expected to control data sharing and agent permissions through the Settings app. The Extensions framework will likely support standard API integration patterns for developers to connect AI services to Siri.

The shift to an open AI marketplace could reshape voice assistant interaction patterns, offering expanded choice while maintaining Apple's emphasis on privacy and user control. More details about the Extensions framework and marketplace policies are expected as the beta program approaches.