These didn't exist until literally months ago. When Dall-e 1 was released two years ago it was fun and amazing but completely unusable for anything professional. Then Dall-e 2 came out. Then Stable Diffusion came out. Then people said SD was unusable because you couldn't generate the same character/object multiple times in different contexts, one month later DreamBooth came out and now you can use SD to generate HD pictures of yourself in StarWars world or smth.