Meta Platforms Inc. has finalized a multibillion-dollar investment in Scale AI and recruited the startup’s chief executive officer to join its artificial intelligence efforts — an unusual deal that signals a heightened push by the social media giant to catch up on AI development.

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

Meta Platforms has finalised a multibillion-dollar investment in Scale AI and recruited the startup’s chief executive officer to join its artificial intelligence efforts — an unusual deal that signals a heightened push by the social media giant to catch up on AI development.