US experts express caution over Deepseek’s claims of lower costs, reduced chip levels, awaiting more information about possible manufacturing breakthrough

Wall Street is tumbling on fears the big U.S. companies that have feasted on the artificial-intelligence frenzy are under threat from a competitor in China.

Investors dumped technology stocks in premarket trading Monday, sending U.S. indexes sharply lower after Chinese artificial intelligence startup DeepSeek demonstrated a chatbot that it says rivals the

DeepSeek, a Chinese AI startup that’s just over a year old, has stirred awe and consternation in Silicon Valley.

DeepSeek, a Chinese AI-chatbot app which launched last week, has sparked chaos in the US markets and raised questions about the future of America's AI dominance. The BBC takes a look at how the app works.

The startup's open-source reasoning model R1 is clobbering AI rivals and panicking investors. But there's more.