this game compete one of them becomes able to generate realistic data the first player is called the generator it produces output data such as just images for example and at the start of the learning process it'll just produce completely random images the other player is called the discriminator the discriminator takes images as input and guesses whether they're real or fake you train it both on real data so photos that come from your training set actual photos of cats and you try to say that those are real you also train it on images that come