fussim

Fast CUDA SSIM for PyTorch - Installation Configurator

pip install fussim

Compatibility Matrix

PyTorch CUDA 11.8 CUDA 12.1 CUDA 12.4 CUDA 12.6 CUDA 12.8
2.5.1 - -
2.6.0 - -
2.7.1 - -
2.8.0 - - -
2.9.0 - - - ✓* ✓*

* PyTorch 2.9.0 wheels are Linux-only (Windows has a known PyTorch bug)

Python 3.13 requires PyTorch 2.8.0 or newer