Alexandr Wang
About Alexandr Wang
Alexandr Wang is an American entrepreneur born in 1997 in Los Alamos, New Mexico. He studied machine learning at MIT and left in 2016 to join Y Combinator. That year he co-founded Scale AI, which provides data labeling and model evaluation services for AI development. Earlier roles included Quora, Hudson River Trading and Addepar.
Wang was Scale AI's CEO until June 2025. At that point Meta invested $14.3 billion for a 49% stake, and he became Meta's first chief AI officer and head of Meta Superintelligence Labs. He stepped down as Scale's CEO and remains on its board. His public X profile lists Meta and Scale AI, and Lounge lists his location as Menlo Park, CA.
Crunchbase lists 12 personal investments by Alexandr Wang, with a latest round in 2025. The earliest dated rounds in its activity feed are Cortex (November 2021), DeepScribe (January 2022) and Twelve Labs (March 2022).
Crunchbase shows him joining rounds alongside other investors rather than leading them. Individual check sizes are not public. Sources should be read with care, because several investor databases mix up different people named Alex Wang.
Most of his listed deals are in AI companies. They include Sakana AI (January 2024), Fireworks AI (Series A in March 2024 and Series B in July 2024), /dev/agents (November 2024) and Reflection AI (March 2025). In 2025 he also appears in rounds for Netic (June) and Volantis (June).
He works full time on AI at Meta, and Scale is a major supplier of data to AI model builders. Neither fact is a stated investing thesis.
The Crunchbase record shows rounds from seed to Series B, with a heavy lean toward AI companies. Wang has not published a thesis, a check size range or a description of what he looks for in founders, so none is given here. Founders should treat any outreach as a cold approach to a full-time Meta executive.
- Fireworks AI: Series A (March 2024) and Series B (July 2024), per Crunchbase.
- Sakana AI: seed round, January 2024, per Crunchbase.
- Reflection AI: Series A, March 2025, per Crunchbase.
- /dev/agents: round in November 2024, per Crunchbase.
- Netic: Series A, June 2025, per Crunchbase.
- Volantis: seed round, June 2025, per Crunchbase.
- Twelve Labs: round in March 2022, per Crunchbase.
- DeepScribe: round in January 2022, per Crunchbase.
- Cortex: round in November 2021, per Crunchbase.
Investing activity
Alexandr Wang appears in 1 AI deal tracked by the Lounge deals desk, rounds totalling $11M. The rounds are mostly Seed, with a median round size of $11M. The most recent is Graylark (Seed, $10.7M, Oct 2026).
Alexandr Wang most often invests alongside General Catalyst, AI Grant and Recorded Future, and the companies they back on Lounge are mostly in AI.
Deals
Frequently asked questions about Alexandr Wang
Is Alexandr Wang an angel investor?
Yes. Crunchbase lists 12 personal investments by him, mostly in AI companies. He is also Meta's chief AI officer and founded Scale AI.
What stage does Alexandr Wang invest in?
His listed rounds run from seed to Series B. He is usually one of several investors in a round, not the lead.
What is Alexandr Wang's check size?
His check sizes are not public, and he has not stated a range.
Which AI startups has Alexandr Wang backed?
Crunchbase lists Fireworks AI, Sakana AI, Reflection AI, /dev/agents, Netic, Volantis, Twelve Labs, DeepScribe and Cortex among others.
What does Alexandr Wang look for in startups?
He has not published an investment thesis that we could find. His portfolio is mostly AI companies.
Where can founders find Alexandr Wang online?
He posts on X as @alexandr_wang. We found no personal website, and no LinkedIn profile that we could verify.
What AI companies has Alexandr Wang invested in?
Alexandr Wang's AI investments include Graylark. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
Where is Alexandr Wang based?
Alexandr Wang is based in Menlo Park, CA.
What stage does Alexandr Wang invest at?
In the rounds tracked on Lounge, Alexandr Wang has invested at Seed, with a median round of $11M.
Who does Alexandr Wang co-invest with?
Alexandr Wang's most frequent co-investors on Lounge are General Catalyst (1 deal), AI Grant (1 deal) and Recorded Future (1 deal).