Why is Stable Diffusion so Atrocious at Dinosaur Scenes? № 1

It’s not just stable diff - I’ve had janky AF results trying for even a mostly correct dino with each new AI model in turn! You can’t really find a more commonly known dinosaur than Velociraptor besides T. rex, and I’ve already been through the wringer trying for a tyrannosaur of some kind.

Interestingly, the raptors in Jurassic Park (Late Cretaceous Park if we’re going by the epoch raptors lived in, lol pedantry) are not V. mongoliensis - according to both the shape and size of the animals onscreen as well as the testimony of the production executives they are based off of another dromaeosaurid, my favorite raptor Deinonychus antirrhopus, which means “terrible claw, counterbalanced” in reference to the greatly-oversized, nasty-looking sickle claw as well as the stiffness of dromeaosaur tails, which were held aloft at an angle for stability. They thought Velociraptor sounded cooler than Deinonychus, and so they changed the name but kept the critter the same in its physical aspects.