OpenAI's GPT-5 model went live for most ChatGPT users this week, but lots of people use ChatGPT not through OpenAI's interface but through other platforms or tools. One of the largest deployments is iOS, the iPhone operating system, which allows users to make certain queries via GPT-4o. It turns out those users won't have to wait long for the latest model: Apple will switch to GPT-5 in iOS 26, iPadOS 26, and macOS Tahoe 26, according to 9to5Mac.
Apple has not officially announced when those OS updates will be released to users' devices, but these major releases have typically been released in September in recent years.
The new model had already rolled out on some other platforms, like the coding tool GitHub Copilot via public preview, as well as Microsoft's general-purpose Copilot.
