Major US technology firms stocks dropped after the emergence of a low-cost chatbot built by a Chinese AI firm.

DeepSeek said it’s restricting signups for new users to people with a mainland China telephone number, claiming that its system had been targeted in “large-scale malicious attacks.”

Meta says it is rolling out improvements to Meta AI, including the ability to tap profile data from Meta's various apps.

Meta is widely launching the ability for its AI chatbot to “remember” certain details about you, such as your dietary preferences or your interests, the company said in a blog post on Monday. It will then use your past conversations, in addition to details from Facebook and Instagram accounts, to provide more relevant recommendations.

Chinese AI chatbot DeepSeek has displaced OpenAI’s ChatGPT as the most downloaded app on the Apple App store and the market is panicking. Stocks for major AI connected companies like NVIDIA fell on Monday morning following the news.

Character AI has filed a motion to dismiss a case brought against it by the parent of a teen who committed suicide allegedly after becoming hooked on the company's technology.

Global technology stocks tumbled in late January as hype around DeepSeek's innovation snowballed and investors began to digest the implications for its U.S.-based rivals and their hardware suppliers.

The emergence of China-based AI app DeepSeek sent shares plummeting on Monday for many U.S. tech giants, including chipmaker Nvidia and AI-backer Microsoft.

DeepSeek researchers claim it was developed for less than $6 million, a contrast to the $100 million it takes U.S. tech startups to create AI.

The inability of Meta's AI chatbot to identify the current president of the United States was elevated to urgent status by the Facebook owner this week, requiring a fast fix, a person familiar with the issue said.