Airbnb’s Chesky helped put Sam Altman back in power. Now he’s building an AI lab to compete with him.

Brian Chesky has spent years as an AI kingmaker. He met Sam Altman through Y Combinator in 2006, advised him on managing OpenAI’s hypergrowth, and helped broker Altman’s return to power after the board fired him in November 2023. He was reportedly considered for a seat on OpenAI’s board. Now he is…