OpenAI Board Stands by Decision to Force Sam Altman Out of C.E.O. Role

The board of directors at OpenAI, the high-flying artificial intelligence start-up, stood by its decision to push out its former chief executive Sam Altman, according to an internal memo sent to the company’s staff on Sunday night. OpenAI named Emmett Shear, a former executive at Twitch, as the new interim chief executive, pushing aside Mira Murati, a longtime OpenAI executive who was named interim chief executive after Mr. Altman’s ouster. The board said Mr. Shear has a “unique mix of skills, expertise and relationships that will drive OpenAI forward,” according...