Latest iOS 27 Beta Expands Siri AI Voice Customization

Apple's fifth beta of iOS 27 expands Siri AI voice customization, allowing Pace and Expressivity adjustments for all seven American and four British voice options, up from just two American voices. The on-device feature requires an iPhone 17 Pro, iPhone 17 Pro Max, or iPhone Air, or a Mac with M3 chip or newer and 12GB RAM, or an M4 iPad Pro or newer with 12GB RAM.

With the fifth beta of iOS 27 https://www.macrumors.com/roundup/ios-27/ , Apple has expanded the voice customization options for Siri https://www.macrumors.com/guide/siri/ AI. Pace and Expressivity can now be adjusted for more of the available voice options instead of just the two American voices. There are seven American voice options and four British voices to choose from, all of which can be customized with different Pace and Expressivity settings. Pace changes talking speed, while expressivity changes emphasis. Siri AI voice customization is done on-device, so the feature is limited to newer iPhones. You need an iPhone 17 Pro https://www.macrumors.com/roundup/iphone-17-pro/ , iPhone 17 Pro Max, or iPhone Air https://www.macrumors.com/roundup/iphone-air/ to use voice customization on an iPhone. It's available on Macs with an M3 chip or newer and at least 12GB RAM, and the M4 iPad Pro https://www.macrumors.com/roundup/ipad-pro/ and newer, also with at least 12GB RAM. This article, " Latest iOS 27 Beta Expands Siri AI Voice Customization https://www.macrumors.com/2026/08/10/ios-27-siri-ai-voice-customization/ " first appeared on MacRumors.com https://www.macrumors.com Discuss this article https://forums.macrumors.com/threads/latest-ios-27-beta-expands-siri-ai-voice-customization.2486698/ in our forums