Five days of chaos: How Sam Altman returned to OpenAI

San Francisco: One of the strangest episodes in the history of the tech industry ended as startup events often do: with a party in San Francisco’s eclectic Mission District.

Late Tuesday, OpenAI said Sam Altman was returning as its CEO, five days after the artificial intelligence startup’s board of directors forced him out. At the company’s San Francisco office, giddy employees snacked on chicken tenders, drank boba tea and Champagne, and celebrated Altman’s return deep into the night.