You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

jax-cuda12-pjrt
0.4.22

This version was deleted from PyPI around 2024-06-11. Installing fails with:
$ pip3 install jax-cuda12-pjrt==0.4.22 ERROR: Could not find a version that satisfies the requirement jax-cuda12-pjrt==0.4.22
View other deleted versions of jax-cuda12-pjrt

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2024-06-10/ \ jax-cuda12-pjrt==0.4.22
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Or, download files manually

And install manually via pip:
jax_cuda12_pjrt-0.4.22-py3-none-manylinux2014_x86_64.whl (74.7MB)