Artists might still be wary and skeptical of artwork by artificial intelligence, but art collectors are seemingly on board. Sotheby’s recently held an auction for the first artwork made by a humanoid robot.

An AI robot’s painting of British computer scientist and codebreaker Alan Turing has sold for $1.08 million, becoming the most valuable artwork by a humanoid robot ever to change hands at auction and raising new questions about the role of artificial intelligence in art.