DALL-E mini is a app that converts text into images. It's based on a larger neural net called (not surprisingly) DALL-E. The main public usage of DALL-E mini seems to be the generating of silly memes like those linked in this article.
One really interesting use, however, is to see the kind of images it generates when you type in feelings and emotions that are rarely associated with a specific image. The images above are from "existential angst."