I heard it once explained as "most fingers have a finger either side" issue. That said, there certainly are SD models that are quite solid in this regard, like

I heard it once explained as "most fingers have a finger either side" issue. That said, there certainly are SD models that are quite solid in this regard, like deliberate. I don't know much about GANs but if the problem is shared w diffusion, perhaps the solution is as well and we just need better training.