How Apple used Google's help to train its AI models

FILE PHOTO: A 3D printed Google logo is placed on the Apple Macbook in this illustration taken April 12, 2020. REUTERS/Dado Ruvic/Illustration/File Photo

SAN FRANCISCO (Reuters) - On stage on Monday CEO Tim Cook's Apple announced a splashy deal with OpenAI to include its powerful artificial intelligence model as a part of its voice assistant, Siri.

But in the fine print of a technical document Apple published after the event, the company makes clear that Alphabet's Google has emerged as another winner in the Cupertino, California, company's quest to catch up in AI.