id like to note something regarding supir. If you want to upscale an image that already has decent quality, do not use Stage 1! Stage one is there to smooth out extremely low res images so the upscaling process can re-add details. But if you do this on decent quality images, you rather lose details instead of gaining the best quality output. Ive tested this with a few images and the output was always better to not use stage one on already good images. You can just upload your own image instead of using stage 1.