DeepSeek’s AI Achievement Flips the Script for Big Tech Earnings

Welcome to Tech In Depth, our revamped daily newsletter with reporting and analysis about the business of tech from Bloomberg’s journalists around the world. Today, Ian King writes that the announcement of a new, cheaper AI model from Chinese startup DeepSeek will force big tech executives to respond to a different set of questions when they release quarterly results beginning later this week.

AT&T’s rebound: In the face of a tech market rout, AT&T had its best day in more than 15 months after reporting surprisingly strong gains in mobile phone customers and fiber-based internet subscribers.