Hey y'all, have been recently trying to test the feasibility of planet-scale world generation with AI (rather than e.g. procedural generation which is what most games use now). In the proof-of-concept, you can type a prompt like "a planet like xyz" and it will generate the cylindrical projection that you can map to a sphere.

It's trained on actual planets/moons so in theory its able to generate super realistic and possibly geologically convincing bodies. It's pretty costly to run (even my personal 3090 couldn't seem to do it at 24GB VRAM) so unfortunately no live demo but feel free to use the code to reproduce.