OpenAI's No. 2 Executive to Step Down in Latest Leadership Shake-up

Fidji Simo won't return from medical leave, leaving a major role to fill as the AI giant prepares to go public.

MiniMax Shares Drop on $2 Billion Fundraising Plan

Shares of MiniMax dropped, after the Chinese artificial-intelligence company disclosed a plan to raise $2 billion through a share placement and convertible-bond offering.

U.S. Biotechs Are Keeping More Secrets to Beat Copycats in China