AI training companies are raising billions to get humans to teach chatbots. Here are the startups cashing in.

The landscape of artificial intelligence is evolving, and rather than replacing human workers, AI is making them more essential than ever before. Gig workers are now commanding impressive hourly rates, with some earning as much as $100 an hour to train AI chatbots like xAI's Grok, enhancing their ability to understand cultural nuances and various fields of knowledge. This surge in demand for human trainers has led to a remarkable increase in the valuations of startups that connect these individuals with major AI labs. Leading the charge are startups such as Surge AI and Scale AI. Surge AI, established in 2020, has rapidly gained attention with its impressive revenue figures, reportedly reaching $1.2 billion last year without any venture capital backing. This success has propelled its CEO, Edwin Chen, to a staggering net worth of $18 billion, as his company approaches a valuation of $30 billion following a potential billion-dollar fundraising round. Surge AI's platform boasts over a million gig workers, with some specialists earning more than $200 an hour. Scale AI, founded in 2016, is another frontrunner in the AI training sector. After being partially acquired by Meta for $14.3 billion, it has transitioned to focus on enterprise and military contracts, despite facing challenges such as customer exodus and layoffs. The startup currently employs a vast workforce of over 300,000 gig workers through its platforms, Outlier and Remotasks. Mercor, a newcomer founded in 2023, is disrupting the market by utilizing AI interviews to connect individuals with training gigs. Co-founder Brendan Foody mentioned that they offer an average pay of $95 an hour, and the company is reportedly pursuing a valuation of $10 billion. Meanwhile, the job search platform Handshake has expanded into AI training, providing opportunities for workers to earn between $75 to $175 an hour. Turing, a startup more focused on technical talent, connects software engineers with top AI labs and recently raised $111 million, achieving a valuation of $2.2 billion. On the other hand, Invisible, a veteran in the field since 2015, offers a marketplace for human trainers and recently secured $100 million in funding, lifting its valuation to over $2 billion. Other notable players include Snorkel AI, which specializes in creating validated datasets for AI companies, and Labelbox, recognized for its gig platform Alignerr. Both companies are also reporting significant growth and raising substantial funds. Micro1, a new entrant connecting AI labs with trainers, has reported over $60 million in annual revenue and secured $35 million in funding at a valuation of $500 million. Despite the rapid growth and opportunities in the AI training sector, companies like Appen, one of the oldest in the data labeling industry, are facing challenges, with their stock values significantly affected this year. Nevertheless, the demand for human AI trainers seems poised for a substantial increase as the industry evolves, with experts predicting a growth in demand by 10 to 20 times in the coming years. As this sector continues to expand, it remains to be seen whether this trend is sustainable or a fleeting phenomenon.