Cupertino, California | Apple has made its long-awaited entrance to the artificial intelligence battle being waged by the world’s biggest companies, with a major overhaul of its personal assistant, Siri, and apps across iPhones, iPads and Macs, plus a landmark deal with ChatGPT maker OpenAI.

In a glut of announcements at Apple’s annual Worldwide Developers Conference in California, chief executive Tim Cook and software engineering boss Craig Federighi showed new AI features that would use Apple’s own software. But more advanced generative AI features will be handled by OpenAI.