Hello! I have an RTX 5070TI and a similar problem. I spent the whole evening on it, but managed to get it working:
The problem is that the CUDA version of PyTorch used by the library author does not yet support newer graphics cards.
Accordingly, the script throws an error during download and switches to CPU mode.
The solution that helped me:
1) I tried many different versions of Python, but ultimately settled on Python 3.10.11.
2) In the startup_script.py file, I changed line 79 to
"--index-url", "<a href="https://download.pytorch.org/whl/nightly/cu130">https://download.pytorch.org/whl/nightly/cu130</a>"
3) Start the installation from the beginning.
In other words, I download another (and nightly!!!) version of pytorch so that everything works for me. CUDA 13+ is required to work on my video card. Unfortunately, as far as I understand, there is no release build for Windows with CUDA 13, only a nightly build.
Do this at your own risk :) This comment is not a call to action xD
Perhaps the library author will suggest a better solution. :)
