I’ve got a new system with a Geforce 5090 and no AI tool worked. When I found this helpful hints of Kevin and ptrblck I tried it with Vlad Mandic’s SDNext and it worked very fine with Flux.1 Dev. SageAttention is not necessary there.
I use Python3-11 and therefore loaded the following packages from https://download.pytorch.org/whl:
torch-2.7.0+cu128-cp311-cp311-win_amd64.whl
torchaudio-2.7.0+cu128-cp311-cp311-win_amd64.whl
torchvision-0.22.0+cu128-cp311-cp311-win_amd64.whl
Installation worked easily:
.\pip install ‘\torch 2.7\torch-2.7.0+cu128-cp311-cp311-win_amd64.whl’
.\pip install ‘\torch 2.7\torchaudio-2.7.0+cu128-cp311-cp311-win_amd64.whl’
.\pip install ‘\torch 2.7\torchvision-0.22.0+cu128-cp311-cp311-win_amd64.whl’
It seems torchaudio has already been installed with torch, cause it was yet found.
SDNext produced a nice apple picture for a test with Flux.1 Dev.
Thanks guys! You made my day! 