Science and Technology

The ominous messages began arriving in Elissa’s inbox early last year.“You sell pics of your underage daughter to pedophiles,” read one. “You’re such a naughty sick mom, you’re just as sick as us pedophiles,” read another. “I will make your life hell for you and your daughter.”Elissa has been running her daughter’s Instagram account since 2020, when the girl was 11 and too young to have her own. Photos show a bright, bubbly girl modeling evening dresses, high-end workout gear and dance leotards. She has more than 100,000 followers, some so enthusiastic about her posts that they pay $9.99 a…

DCM Ventures, a Silicon Valley venture capital firm, began investing in China’s start-ups in 1999. The move reaped such blockbuster returns that in 2021, DCM said it planned to “double down” on its strategy of investing in China, the United States and Japan.Yet when DCM set out to raise money last fall for a new fund focused on very young companies and promoted its “cross-Pacific” expertise, the firm described plans to invest in the United States, Japan and South Korea, according to a fund-raising memo that was viewed by The New York Times.China was not mentioned.DCM’s messaging is one example…

In November, a year after ChatGPT’s release, a relatively unknown Chinese start-up leaped to the top of a leaderboard that judged the abilities of open-source artificial intelligence systems.The Chinese firm, 01.AI, was only eight months old but had deep-pocketed backers and a $1 billion valuation and was founded by a well-known investor and technologist, Kai-Fu Lee. In interviews, Mr. Lee presented his A.I. system as an alternative to options like Meta’s generative A.I. model, called LLaMA.There was just one twist: Some of the technology in 01.AI’s system came from LLaMA. Mr. Lee’s start-up then built on Meta’s technology, training its…