In late October 2018, a trio of artificial intelligence researchers became the first to sell an original work of computer-generated art on the world stage at Christie's auction house in New York, and the art world is still reeling at the implications. The Paris-based Obvious art collective -- founded by Pierre Fautrel, Hugo Caselles-Dupre, and Gauthier Vernier -- used a method called a "Generative Adversarial Network" (GAN) to create 10 canvas-based portraits of the fictional Belamy family in a show called "La Famille de Belamy." The portrait entitled Edmond de Belamy was expected to bring $7,000 to $10,000 at auction, but when the gavel fell, that number was $432,500, more than 40 times the expected sale price, according to CNN.
To create the portrait, the three members of Obvious exposed their artificial intelligence algorithm to 15,000 different portraits from 600 years throughout history, from the 14th through the 20th centuries. The AI analyzed each piece, looking for common features, and then began creating artwork of its own, trying to mimic the common facial and body structures that it had been exposed to. That aspect of the algorithm is known as the Generator, according to Christie's. After a piece has been generated, it is paired with a similar piece of human-generated artwork and a second aspect of the algorithm called the Discriminator then tries to determine which was created by the Generator. The pieces that the Discriminator fails to identify as AI-created are then considered to be successful pieces.