teased upcoming AI updates

In this sentence, "teased" means that Apple CEO Tim Cook hinted or suggested in a playful or indirect way that Apple might have an AI-related announcement later this year. It implies that he provided just enough information to create interest or excitement but didn't give away all the details. The term "tease" is often used in marketing and media to describe how companies or individuals release small bits of information to build anticipation for a future event or product release.