After joining with Mr. Musk to create OpenAI in 2015 and pledging to carefully develop artificial intelligence for the benefit of humanity, the suit claimed, Mr. Altman and Mr. Brockman abandoned this mission by entering its multibillion-dollar partnership with Microsoft.

Two massive egos and two idiosyncratic entrepreneurs have joined forces. That's not always a recipe for success.

The family portrait featured the 78-year-old Republican beaming alongside his five kids, their partners and a handful of his grandchildren at his Mar-a-Lago estate in Florida on election night.