So like everybody else on the planet, I've started playing around with AI generated art. In my case, I downloaded Stable Diffusion and have been giving that a try. In particular, I have been using an easy to install version called 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.
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 or smaller images and disable the "Turbo" option it seems to work pretty well. Also, you don't technically even need a GPU to use Stable Diffusion. It's just that if you don't have one and use only the CPU, each image will take 30 minutes or more to produce (depending on how fast your CPU is). 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...as long as you are patient.
One of my early attempts was to create some Star Wars themed images using various prompts with "Dark Jedi" in them. This is one of those. Despite not (yet) being able to produce quite what I was going for in that regard, I still like how this one came out. Very creepy looking. Stable Diffusion doesn't seem to do light sabers though (I'll have to try adding that to the prompt) and instead we get swords.