The world's "youngest self-made billionaire" made the vast fortune aged just 25, and is a powerful player in the Artificial Intelligence revolution.

Alexandr Wang, co-founder and chief executive of AI firm Scale AI, made his debut on Forbes’ billionaires list in May 2022, aged just 25, as the youngest self-made ten-figure net worth individual in the world.

The American business magazine defines "self-made" billionaires as those "who built a company or established a fortune on her own, rather than inheriting some or all of it".

The San Francisco-based business Wang helped build supplies labour and software for tech tasks including "labelling data to train AI" for "large language models such as Chat GPT", as per The Week.

Since then, he is thought to have more than doubled his estimated networth to a staggering $2 billion (£1.6bn) as of February 7, 2025, according to Forbes.

The company helps some 300 clients, including Flexport and General Motors on projects including supply chain efficiency and autonomous driving, as per the outlet.

Wang, now 28, is thought to own an estimated 15% of Scale, which investors valued at $7.3 billion (£6bn) in 2021.

The son of weapons physicists, Wang grew up in the quiet town of Los Alamos, New Mexico, made famous as the site where Oppenheimer and a team of scientists developed the United States' first atomic bomb in the 1940s.