Because very few things have more than one head, the rest of human anatomy we have in multiples and they’re in all sorts of positions, heads have a habit of being limited to directly on top of shoulders, and a (usual) maximum of one. So there’s just a lack of training data and any attempts to get multiple heads ends up with multiple creatures. In saying that there are workarounds, and it’s not that hard to mock up something basic in photoshop and then AI paint over it.
![[SD] Biblically Accurate Angel](https://lemmy.world/pictrs/image/1e20a8bd-8996-4c8b-b37a-2c6e9cef4799.jpeg){kind=link}
You’d likely need a model trained specifically for creating a single entity with multiple heads, aside from that it would be pretty easy.
They all do so well with multiple hands and fingers beyond normal human anatomy, wonder why they couldn’t figure out multiple heads.
Because very few things have more than one head, the rest of human anatomy we have in multiples and they’re in all sorts of positions, heads have a habit of being limited to directly on top of shoulders, and a (usual) maximum of one. So there’s just a lack of training data and any attempts to get multiple heads ends up with multiple creatures. In saying that there are workarounds, and it’s not that hard to mock up something basic in photoshop and then AI paint over it.