Apple Builds a ChatGPT-Like App to Help Test the Revamped Siri

Apple Inc. has developed a ChatGPT-like iPhone app to help test and prepare for a long-anticipated overhaul of Siri coming next year, according to people familiar with the matter.

The company’s AI division is using the app to quickly evaluate new features for Siri, Apple’s voice-powered assistant. That includes testing the ability to search through personal data, such as songs and emails, and perform in-app actions like editing photos, said the people, who asked not to be identified because the initiative is private.

The software — code-named Veritas, Latin for “truth” — is meant for internal use, at least for ...