By Sinéad Carew, Amanda Cooper and Ankur Banerjee LONDON/SINGAPORE (Reuters) - Investors made a quick exit from a host of technology stocks from Tokyo to New York on Monday as the emergence of a low-cost Chinese artificial intelligence model challenged the dominance of current AI leaders such as Nvidia .

DeepSeek, a Chinese AI startup that’s just over a year old, has stirred awe and consternation in Silicon Valley after demonstrating breakthrough artificial intelligence models that offer comparable performance to the world’s best chatbots at seemingly a fraction of the cost.

DeepSeek topped the Apple App Store over the weekend, and R1 had already cracked the top 10 of the UC Berkeley leader board Chatbot Arena, a ranking of the top-performing AI assis