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.

DeepSeek has launched an AI model that was reportedly developed with significantly less computational power than traditional methods. Shares of Nvidia are under pressure amid concerns that DeepSeek's methods may undermine demand for its high-performance GPUs.

AI investors are desperately trying to find clues on the real impact of DeepSeek on chip demand in the future and gauge how the breakthrough in China would impact US companies.

Here’s what you need to know about DeepSeek, the Chinese AI startup that rattled markets as its app dethroned OpenAI's as the most-downloaded free app in the U.S. on Apple.

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.

DeepSeek stunned the tech world with the release of its R1 "reasoning" model, matching or exceeding OpenAI's reasoning model for a fraction of the cost.