Updated: Aug 24, 2025
base modelThis upscaler is not mine, all the credit goes to: N00MKRAD
Official WIKI page: openmodeldb
License of use it: WTFPL
HOW TO INSTALL:
Copy the file 4x_NMKD-Siax_200k.safetensors
inside the folder: stable-diffusion/models/ESRGAN
or ComfyUI/models/upscale_models
Restart/Reload you Stable Diffusion instance
The upscaler should be visible for hi-res and extras tabs