24.01.2026, 12:26
In the case it could be useful, in the workflow was used the model svdq-fp4 available at this page: https://huggingface.co/nunchaku-ai/nunch...-edit-2509
The fp4 quantization is supported only by GPU RTX50, for older GPU it is necessary to use svdq-int4 quantization, you can find it on the link above.
Some suggestions: given that the colorization of a B&W images is a much simpler task, respect the text to image.
It is possible to use the rank32 version of svdq-int4 quantization and lower the number of steps from 4 to 2.
Dan
The fp4 quantization is supported only by GPU RTX50, for older GPU it is necessary to use svdq-int4 quantization, you can find it on the link above.
Some suggestions: given that the colorization of a B&W images is a much simpler task, respect the text to image.
It is possible to use the rank32 version of svdq-int4 quantization and lower the number of steps from 4 to 2.
Dan