Hi @kokotvamd10140309,
Model 3 fast mode is lower resolution than Model 3 upscaled (or fast mode turned off)
Model 3 Upscaled is the same resolution as Model 4.
These are not equivalent:
- Model 3 fast mode :: Model 3 Upscaled
- Model 4 :: Model 4 Ultra
So, there is not a concept of taking a model 4 image and upscaling it to Model 4 Ultra. Model 4 and Model 4 ultra have the same resolution. The quality of the image is better with Ultra, but the resolution is the same.
My best,
droopy