Key Takeaways AI stocks had a volatile week as Wall Street reckoned with the implications of a sophisticated, cost-efficient AI model from Chinese start-up DeepSeek.Semiconductor stocks such as Nvidia and Broadcom sold off on Monday as investors worried DeepSeek's efficiencies would temper enthusiasm for AI infrastructure spending.

A Chinese company’s cut-rate computing solution has upended the tech world, with companies, investors and even the U.S. government trying to understand what it means for the future.

U.S. tech stocks plunged on Monday, amid a wider market sell-off. The culprit: DeepSeek, a Chinese artificial intelligence company that last week introduced a new — and low-cost — model into the red-hot AI tech market.

"In our view this is a correction and not the start of a sustained bear market," Goldman Sachs said. DeepSeek sparked a $1 trillion market rout on Monday.

As we’ve written numerous times elsewhere, the cause of Monday’s DeepSeek market wobble were fears that good-enough LLMs won’t cost billions to build and run, and that supplying them won’t be a winner-take-all competition.