How were these wallpapers created?

All wallpapers on AIWallpapers.net were created using AI image generation techniques, and then manually cherry-picked by humans. Occasionally, minor corrections have been made by hand, to prevent small issues from spoiling otherwise greate wallpapers.

How can I generate my own AI images?

One popular, free image generation model is called Stable Diffusion. Note that efficiently generating AI images requires a high-end GPU. Alternatively, several online generators exist which operate on a commercial basis.