quote [ In 2014 machine learning researcher Ian Goodfellow introduced the idea of generative adversarial networks or GANs. The first GAN images were easy for humans to identify. But the latest examples of GAN-generated faces are more difficult. Here are some things you can look for when trying to recognize an image produced by a GAN. We’ll focus on faces because they are a common testing ground for researchers, and many of the artifacts most visible in faces also appear in other kinds of images. ]