China’s DeepSeek says it trained an AI model for less than $6 million. This is as big U.S. tech companies have poured billions of dollars into AI chips and systems for their projects.

Nvidia and other U.S. AI stocks rebounded Tuesday after Monday’s DeepSeek-driven sell-off. Nvidia shares rose 9% but were still below Friday’s close. Analysts at Bernstein, Citi, Wedbush, and others suggested Monday’s sell-off was overblown,

Monday’s big tech sell-off in shares across the world stemmed from the release of an artificial intelligence model launched by DeepSeek - but on Tuesday, some of those worst-hit stocks bounced back. With a short period of time for reflection and re-judgement since the initial shock,