jax-ml/jax

Composable transformations of Python+NumPy programs: differentiate, vectorize, JIT to GPU/TPU, and more

36.4k stars · 3.9k forks · Python

Healthy

Healthy: actively maintained by 71 people, no known risks.

Why

No rule fired.

What would change this

Partly checked: maintenance (Commit counts are estimated: the commit sample stops before the window start, so GitHub's totals were scaled by the sampled bot share.; Authors in the last 90 days are counted from the sampled commits only.)
A dormant maintenance status, a deprecated or archived package, a successor link, or a critical advisory would change this.

Maintenance

Partial

Active

Human commits, 30 days: 784
Human commits, 90 days: 2k
Human commits, 365 days: 7.9k
Bot share of commits, 365 days: 0%
Last commit: Oct 14, 2026 (14 hours ago)
Last human commit: Oct 14, 2026 (14 hours ago)
Authors, 90 days: 71
Last release: Sep 17, 2026 (27 days ago)
Median PR merge time: 2 hours

Responsiveness: of 30 recent issues, 40% got a maintainer reply. Median first response: 11 hours.

Commit counts are estimated: the commit sample stops before the window start, so GitHub's totals were scaled by the sampled bot share.
Authors in the last 90 days are counted from the sampled commits only.

Sources: Commits, Releases, Merged pull requests, Issues

People

Complete

Owner: Organization
Commits sampled: 381 since Oct 14, 2025
Authors for half of commits: 5
Authors for 80% of commits: 19
Contributors: 395

Top committers

bchetioui: 13% of commits
hawkinsp: 12% of commits
superbobry: 12% of commits
yashk2810: 8% of commits
mattjj: 7% of commits

Shares come from the newest sampled commits, since the commit sample is capped.
Commits pushed by accounts that sync other people's work, such as translation platforms, are left out of the shares.

Sources: Commits, Contributors

Stars

Complete

Mostly organic, confidence high

Bars show stars gained each week. Orange bars overlap a burst.

Bursts

Dec 7, 2018 to Dec 24, 2018: about 2k more stars than usual, peak 419 in one day, a spike that tapers off. We couldn't check for an outside explanation.
Dec 16, 2019 to Dec 17, 2019: about 56 more stars than usual, peak 47 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Feb 20, 2020 to Feb 27, 2020: about 262 more stars than usual, peak 61 in one day, a flat block of stars. Outside explanation: a jump in forks, a jump in issues and pull requests.
Apr 8, 2020 to Apr 9, 2020: about 162 more stars than usual, peak 160 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Jun 25, 2020 to Jun 29, 2020: about 108 more stars than usual, peak 44 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Aug 9, 2021 to Aug 11, 2021: about 65 more stars than usual, peak 49 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Oct 20, 2021 to Oct 22, 2021: about 140 more stars than usual, peak 121 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Dec 14, 2021 to Dec 15, 2021: about 158 more stars than usual, peak 136 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Jun 14, 2022 to Jun 30, 2022: about 1.1k more stars than usual, peak 175 in one day, a shape we can't classify. Outside explanation: a jump in forks.
Aug 19, 2023 to Aug 20, 2023: about 119 more stars than usual, peak 102 in one day, a spike that tapers off. Outside explanation: a jump in forks, a jump in issues and pull requests.
Nov 6, 2023 to Nov 7, 2023: about 167 more stars than usual, peak 140 in one day, a spike that tapers off. Outside explanation: a jump in forks.
Mar 17, 2024 to Mar 20, 2024: about 268 more stars than usual, peak 142 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
Jun 3, 2024 to Jun 6, 2024: about 224 more stars than usual, peak 138 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
Sep 14, 2024 to Sep 14, 2024: about 77 more stars than usual, peak 88 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.

Anyone can buy stars for any repo; bursts alone don't prove the owner did.

Anyone can buy stars for any repo, so this describes the star history only.

Sources: How star history is analyzed

Risk

Complete

Flags

No risk flags.

License

Now: Apache-2.0 (OSI-approved)
A year ago: Apache-2.0 (OSI-approved)

Packages

No published packages found.

Sources: GitHub: jax-ml/jax

Badge

Add this to a README to show the current verdict:

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Earlier verdicts

Oct 14, 2026: Healthy
Oct 14, 2026: Healthy
Oct 13, 2026: Healthy

Computed 13 hours ago · method 2026.10.2