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United States Alexandr Wang is a prominent AI researcher and entrepreneur recognized for co-founding Scale AI, a leader in AI data solutions, and for his current role as Meta's Chief AI Officer.
Alexandr Wang cofounded Scale AI in 2016 to help companies put their raw data to work for AI and machine learning. He served as CEO until June 2025.
In June 2025, Meta acquired 49% of Scale AI in a deal that valued Scale at around $29 billion. Wang subsequently left Scale to become Meta's Chief AI Officer. Meta also invested $14.3 billion in Scale AI.
A fintech company where Wang landed one of his first full-time engineering jobs in Silicon Valley at age 17.
Wang worked as a software programmer for the question-and-answer site during his teenage years.
Wang briefly attended MIT to study machine learning before dropping out to launch Scale AI.
Wang attended the Y Combinator accelerator program to launch Scale AI.
Scale AI has received defense contracts from the United States Armed Forces, and was awarded a $100 million agreement from the Pentagon's Chief Digital and Artificial Intelligence Office to test and evaluate large language models for military planning.
Wang joined the board of Expedia Group in 2023.
In August 2023, Scale AI partnered with OpenAI, becoming the company's "preferred partner" to fine-tune GPT-3.5. Wang is also known to be close with OpenAI's CEO, Sam Altman.
Scale AI provides data annotation services for clients including Microsoft.
Alexandr Wang was born in January 1997 in Los Alamos, New Mexico, to Chinese immigrant physicists. From an early age, he demonstrated a strong aptitude for mathematics and computer programming, participating in the Math Olympiad Program in 2013, the US Physics Team in 2014, and becoming a USACO finalist in 2012 and 2013. His early career included full-time engineering roles in Silicon Valley at the fintech firm Addepar and the question-and-answer site Quora by age 17. After a brief period studying machine learning at MIT, Wang left to co-found Scale AI in 2016 at just 19 years old.
Under Wang’s leadership as CEO, Scale AI quickly grew to become a significant player in the artificial intelligence industry, providing data labeling and large language model evaluation services. The company achieved a valuation of $7.3 billion in 2021, making Wang, at 24, the world’s youngest self-made billionaire at that time. Scale AI has secured defense contracts with the United States Armed Forces, including a $100 million agreement with the Pentagon and tasks from the Chief Digital and Artificial Intelligence Office to evaluate the safety and reliability of large language models for military applications.
In June 2025, a major turning point occurred when Meta acquired 49% of Scale AI in a deal valuing the company at around $29 billion. Following this acquisition, Wang transitioned from CEO of Scale AI to become Meta’s Chief AI Officer, while retaining a director position on the Scale AI Board. His influence extends beyond technology development; he has engaged with political and economic leaders, including testifying before a House Armed Services subcommittee in 2023 on AI adoption, meeting with global leaders to discuss AI cooperation in February 2025, and addressing the World Economic Forum on the global AI race.
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