Scale AI’s Sales Nearly Quadrupled in First Half

Helping artificial intelligence companies improve the accuracy of their large language models is turning into a giant business for Scale AI, which labels data for big AI developers like Meta Platforms and Google.

Scale nearly quadrupled its sales to almost $400 million in the first half of the year compared with the same period last year, according to people familiar with the figures. Scale is among the privately held firms that have benefited the most from the AI boom by providing infrastructure or services—in Scale’s case, human contract workers—to companies building advanced AI.