Scale AI, Inc. is an American data annotation company based in San Francisco, California. It provides data labeling and model evaluation services to develop applications for artificial intelligence.

Scale AI’s customers in the commercial sector include Etsy, General Motors, OpenAI, PayPal, Pinterest, Samsung, Toyota, and Uber. The company also directly works with world governments, including the United States on multiple military-related projects, and with Qatar to improve the efficiency of its social programs.