(venv) C:\IA\stable-diffusion-webui\venv\Scripts>pip install xformers
Collecting xformers
Downloading xformers-0.0.31.post1-cp39-abi3-win_amd64.whl.metadata (1.1 kB)
Requirement already satisfied: numpy in c:\ia\stable-diffusion-webui\venv\lib\site-packages (from xformers) (1.26.2)
Collecting torch2.7.1 (from xformers)
Downloading torch-2.7.1-cp310-cp310-win_amd64.whl.metadata (28 kB)
Requirement already satisfied: filelock in c:\ia\stable-diffusion-webui\venv\lib\site-packages (from torch2.7.1xformers) (3.18.0)
Requirement already satisfied: typing-extensions>=4.10.0 in c:\ia\stable-diffusion-webui\venv\lib\site-packages (from torch==2.7.1xformers) (4.14.1)
Requirement already satisfied: sympy>=1.13.3 in c:\ia\stable-diffusion-webui\venv\lib\site-packages (from torch2.7.1xformers) (1.14.0)
Requirement already satisfied: networkx in c:\ia\stable-diffusion-webui\venv\lib\site-packages (from torch==2.7.1xformers) (3.4.2)
Requirement already satisfied: jinja2 in c:\ia\stable-diffusion-webui\venv\lib\site-packages (from torch2.7.1xformers) (3.1.6)
Requirement already satisfied: fsspec in c:\ia\stable-diffusion-webui\venv\lib\site-packages (from torch==2.7.1xformers) (2025.7.0)
Requirement already satisfied: mpmath<1.4,>=1.1.0 in c:\ia\stable-diffusion-webui\venv\lib\site-packages (from sympy>=1.13.3torch==2.7.1xformers) (1.3.0)
Requirement already satisfied: MarkupSafe>=2.0 in c:\ia\stable-diffusion-webui\venv\lib\site-packages (from jinja2torch==2.7.1xformers) (2.1.5)
Downloading xformers-0.0.31.post1-cp39-abi3-win_amd64.whl (100.2 MB)
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Downloading torch-2.7.1-cp310-cp310-win_amd64.whl (216.1 MB)
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Installing collected packages: torch, xformers
Attempting uninstall: torch
Found existing installation: torch 2.1.2+cu121
Uninstalling torch-2.1.2+cu121:
Successfully uninstalled torch-2.1.2+cu121
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
torchvision 0.16.2+cu121 requires torch==2.1.2+cu121, but you have torch 2.7.1 which is incompatible.
Successfully installed torch-2.7.1 xformers-0.0.31.post1