Retailers are navigating a holiday season in which shoppers aren’t splurging as much as they have in recent years. 

Sam Altman’s firing showed the influence of effective altruism and its view that AI development must slow down. His return marked its limits.

A fired CEO, middle-finger emojis and the battle royale over the future of artificial intelligence.

The former Treasury secretary joins a three-person initial board that has been appointed as Sam Altman returns as chief executive.

The announcement marks the end of an impasse over who would lead the company that has become synonymous with the boom in AI technology.

The company’s chief scientist led a board coup against one of the most prominent figures in Silicon Valley.