DeepSeek, a Chinese artificial intelligence (AI) start-up, is sending shock waves through the U.S. tech sector by demonstrating its latest AI assistant, which achieves performance comparable to or even surpassing some of the world's best chatbots.

DeepSeek's new AI model has sparked concerns about Nvidia's dominance in the AI hardware market, causing a drop in the chipmaker's stock and raising questions about the future of high-performance AI chips.

A security expert warns “Deepseek,” the no. 1 downloaded app on Apple and Google, could pose potential privacy concerns for American users.