TL;DRiOS 27 beta has an Extensions system for third-party AI in Siri, but Apple skipped the announcement at WWDC amid EU, legal, and messaging headwinds.
Apple’s iOS 27 developer beta contains underlying support for a feature the company never mentioned at its WWDC keynote on June 8: an Extensions framework that would allow iPhone users to swap between ChatGPT, Anthropic’s Claude, and Google’s Gemini directly inside Siri. Bloomberg’s Mark Gurman has reported that the system includes a settings panel and a dedicated App Store section, both built but toggled off on Apple’s backend. Apple has held discussions with OpenAI, Anthropic, and Google about granting entitlements for the framework, according to Bloomberg.
The feature was widely expected. Gurman first reported in March that Apple was building Extensions to replace the bilateral ChatGPT deal with an open system any qualifying AI provider could join. TechCrunch described the approach in May as a “choose your own adventure of AI models.” By the time WWDC arrived, the question was not whether Extensions would launch, but how prominently Apple would position it.
The answer was: not at all. Apple devoted the WWDC keynote almost entirely to Siri AI, its rebuilt assistant powered by a custom 1.2-trillion-parameter Gemini model running on Nvidia Blackwell GPUs in Google Cloud. The company introduced a standalone Siri app, personal context features, and a three-tier privacy architecture.
