Scale
Data labeling and AI model evaluation platform
About
Founded in 2016 by Alexandr Wang and Lucy Guo through Y Combinator, Scale AI started as a data labeling API for autonomous vehicles and expanded into a full AI data platform. Today Scale provides high-quality training data, RLHF pipelines, red-teaming, and model evaluation for frontier AI labs and enterprises. Customers have included OpenAI, Meta, Microsoft, the U.S. Department of Defense, and General Motors. Scale differentiates on quality-controlled human labeling combined with model-assisted automation, and on its growing government and defense practice. In 2025, Meta made a $14.3B investment for a 49% stake, valuing Scale at $29B, and Alexandr Wang joined Meta as Chief AI Officer.
Products
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Scale AI
— Provides reliable AI systems to support critical decision-making processes.
Customer sectors: enterprise, technology companies, data scientists
Market research & competitive positioning
Source-backed TAM / SAM / SOM sizing, displacement analysis, and an interactive peer positioning map for Scale — available to members.
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