Sotheby's to auction its first artwork made by a humanoid robot

Sotheby's later this month hopes to make the auction house's first ever sale of an artwork made by a humanoid robot. 

Ai-Da, a humanoid robot artist, is contributing "AI God," a portrait of Alain Turing, the mathematician and computer scientist considered to be the progenitor of modern computing, to what Sotheby's calls a "digital art day" auction. Turing is also credited with providing some of the earliest insights into what is now referred to as "artificial intelligence." 

The 64 x 90.5 inch mixed-media painting, which was created this year and is signed "A" by Ai-Da, is estimated to fetch between $120,000 and $180,000, according to a listing on Sotheby's website. The auction opens on Oct. 31.