Stable Diffusion is a deep learning model that can generate images from text descriptions. It offers high-quality image generation, capable of creating realistic images from simple text inputs. It boasts fast generation speeds and can add or replace parts of an image by resizing and extending it. Stable Diffusion XL, the latest version of this model, utilizes a larger UNet backbone network to generate even higher-quality images. You can use this AI image generator for free online via Stable Diffusion.