The richest new Forbes 400 member hails from OpenAI. It isn’t Sam Altman.
Published on September 15, 2026 This OpenAI cofounder once mused about how he could become a billionaire. Now he’s worth more than US$25 billion. Ethan Pines for Forbes “Financially, what will take me to $1B?” Greg Brockman wrote in his journal in August …