OpenAI is winding down its work with Scale AI, the artificial intelligence startup that received a multibillion-dollar investment from Meta earlier this month and saw its founder join the social media company to lead an AI effort.

Scale AI built its business on the labor of gig workers. But those workers likely won't benefit from their new deal with Meta.

OpenAI is phasing out the work it does with data-labeling startup Scale AI, cutting ties with the company days after Meta Platforms Inc. invested billions of dollars in it and hired its founder.