In the fallout of the Christie’s sale it emerged that the AI was actually the work of another artist, Robbie Barrat. He had programmed it, trained it on works from Wikiart and used it to generate very similar portraits, before he posted the code online with an open-source licence, so others could use it freely. So not only is the Obvious portrait not attributable to the AI – it’s not even really attributable to Obvious. – BBC