to keep in mind:
Core ML models are only suitable for inference. They can’t be used for training or fine-tuning.
Only two schedulers have been ported to Swift, the default one used by Stable Diffusion and DPMSolverMultistepScheduler, which we ported to Swift from our diffusers implementation. We recommend you use DPMSolverMultistepScheduler, since it produces the same quality in about half the steps.
Negative prompts, classifier-free guidance s