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winjax

Native Windows CUDA support for JAX — no WSL2 required. Unofficial.

winjax installs a PJRT GPU plugin built natively for Windows from XLA sources, plus a small loader that registers it with stock jax/jaxlib. All CUDA runtime libraries (CUDA 13, cuDNN 9) come from NVIDIA's pip wheels, so a working NVIDIA driver is the only system requirement.

Requirements

  • Windows 10/11, x86-64
  • Python 3.13
  • An NVIDIA GPU with a driver supporting CUDA 13

Install

pip install winjax

Use

import jax
print(jax.devices())  # [CudaDevice(id=0)]

Nothing else to configure: import jax discovers the plugin through the jax_plugins namespace package.

Packages

  • winjax — loader (this package, pure Python)
  • winjax-cuda13-pjrt — the Windows-built XLA CUDA PJRT plugin DLL
  • winjax-cuda13-plugin — CUDA kernel extension modules (jax_cuda13_plugin)

Source and patches: https://github.com/eterevsky/winjax

Metadata

Release files for winjax 0.11.2

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Built distribution (wheel)

Table of built distributions (wheels) for winjax 0.11.2
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winjax-0.11.2-py3-none-any.whl Python 3 none any Details

Release files / winjax-0.11.2-py3-none-any.whl

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0.11.2 This release

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