Co-founder & Chairman (former CEO)
Est. net worth: $3.6B
Dropped out of MIT at 19 to co-found Scale AI in 2016 and served as CEO until June 2025, when he left to become Meta's Chief AI Officer leading Meta Superintelligence Labs while remaining Scale's Chairman of the Board. He became the world's youngest self-made billionaire in 2021.
Scale AI won multimillion-dollar defense deals to apply its data-labeling and Donovan platform to military intelligence and targeting, putting a consumer AI-labeling firm at the center of automated warfare.