This upscaler is not mine, all the credit goes to: FoolhardyVEVO

Official WIKI page: openmodeldb

License of use it: CC-BY-NC-SA-4.0

HOW TO INSTALL:

Rename the file from: remacri_original.pt to 4x_foolhardy_Remacri.pth

Copy the file 4x_foolhardy_Remacri.pth inside the folder: stable-diffusion/models/ESRGAN

Restart/Reload you Stable Diffusion instance

The upscaler should be visible for hi-res and extras tabs