Japanese technology shares fell on Tuesday as a global market rout sparked by the emergence of a low-cost Chinese artificial intelligence model entered day two, with investors questioning the sky-high valuation and dominance of AI bellwethers.

DeepSeek released an open-source artificial intelligence model in December, saying it took only two months and less than $6 million to create it.

Global investors dumped tech stocks amid the emergence of a low-cost Chinese AI model, leaving Nvidia with a record one-day loss for any company on Wall Street.