These files exist only as a convenience copy of the files under
https://huggingface.co/mhdang/dpo-sd1.5-text2image-v1
and
https://huggingface.co/mhdang/dpo-sdxl-text2image-v1

I did not create any of the work here. I only converted the unet files from mhdang into the more convenient "checkpoint" format.