So like everybody else on the planet, I've started playing around with AI created art. In my case I downloaded Stable Diffusion and have been giving that a try. I had a few technical hurdles at first but found an easy to install version (stable_diffusion_ui) that I was able to get running on both Windows and Linux. It has a GUI which some people might prefer (and I have been using) but the real appeal to me was that it was easy to install. Though the Linux version wasn't quit the one click install that the Windows version was, it was pretty close.
Stable Diffusion seems to work (within limits) on nVidia GPUs with 4MB or more. I have seen minimum requirements listed as higher than that but as long as you stick with 512x512 images or smaller and disable Turbo it seems to work pretty well. Also, you actually don't have to have a GPU to use Stable Diffusion. It's just that if you don't, each image will take 30 minutes or more to produce depending on the speed of your CPU. But even if that is all you have, this is open source software so you can generate as many images as you want for free.
One of the themes I've played around with the most are Steampunk themed images. This is one that I thought turned out pretty well.
