WASHINGTON POST - Jan 7 - AI start-ups are selling images of computer-generated faces that look like the real thing, offering companies a chance to create imaginary models and "increase diversity" in their ads without needing human beings. One firm has already signed up clients, including a dating app that intends to use the images in a chatbot. The AI software used to create such faces is freely available and improving rapidly, allowing small start-ups to easily create fakes that are so convincing they can fool the human eye. The systems train on massive databases of actual faces, then attempt to replicate their features in new designs. But AI experts worry that the fakes will empower a new generation of scammers.