Numerical differential equation solvers in JAX. Autodifferentiable and GPU-capable. https://docs.kidger.site/diffrax/
active 2025-01-25 → 2026-06-11 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 503 days from 2025-01-25 to 2026-06-11. Pushes: 32 total, peak 3 in a day. Pull requests: 43 total, peak 3 in a day. Issues: 56 total, peak 3 in a day. Comments: 312 total, peak 18 in a day. Stars: 200 total, peak 4 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| patrick-kidger | 239 | 32 | 23 | 136 |
| lockwo | 29 | 0 | 2 | 20 |
| johannahaffner | 28 | 0 | 1 | 23 |
| andyElking | 23 | 0 | 0 | 13 |
| sammccallum | 22 | 0 | 2 | 10 |
| LuggiStruggi | 19 | 0 | 4 | 12 |
| jpbrodrick89 | 15 | 0 | 2 | 12 |
| poonai | 12 | 0 | 1 | 8 |
| YigitElma | 5 | 0 | 0 | 4 |
| zhlfmyzhh | 5 | 0 | 0 | 2 |
| timnotavailable | 5 | 0 | 0 | 3 |
| vietluong2110 | 4 | 0 | 0 | 3 |
| VMLC-PV | 4 | 0 | 0 | 3 |
| DylanEsguerra | 4 | 0 | 0 | 2 |
| philipwijesinghe | 4 | 0 | 2 | 1 |
| nstarman | 4 | 0 | 1 | 1 |
| terhorst | 4 | 0 | 0 | 2 |
| sgstepaniants | 4 | 0 | 0 | 2 |
| BenjaminDAnjou | 4 | 0 | 0 | 4 |
| julibeg | 3 | 0 | 0 | 1 |
Recent activity
Latest issues, pull requests and releases
- Pull request#745patrick-kidger-bot2026-04-04 23:57
- Issue comment#517lockwo2026-03-10 05:15Performance issue with SDE solver
- Issue comment#517mattlevine222026-03-09 21:55Performance issue with SDE solver
- Issue comment#734patrick-kidger2026-02-23 08:46Combine bits via xor when bitcasting from larger to smaller type
- Issue comment#301BenjaminDAnjou2026-02-22 03:40SaveAt dense and fn
- Issue#735sdevries02026-02-21 12:18Support for Sharding 2.0
- Issue comment#734patrick-kidger2026-02-20 18:16Combine bits via xor when bitcasting from larger to smaller type
- Issue comment#733patrick-kidger2026-02-19 15:07UnsafeBrownianPath.evaluate() bitcasts to int32, which results in unexpected results when using float64 timesteps
- Pull request#732patrick-kidger2026-02-17 22:08
- Issue comment#729patrick-kidger2026-02-17 16:48Gradients of state variables in post-event simulations
- Issue comment#729patrick-kidger2026-02-17 15:37Gradients of state variables in post-event simulations
- Pull request#731patrick-kidger2026-02-17 15:29
- Issue#729patrick-kidger2026-02-16 23:07Gradients of state variables in post-event simulations
- Issue comment#729patrick-kidger2026-02-16 23:04Gradients of state variables in post-event simulations
- Issue comment#730johannahaffner2026-02-16 20:31Update optimistix dependency version
- Issue comment#301patrick-kidger2026-02-16 09:44SaveAt dense and fn
- Issue#723johannahaffner2026-02-08 16:45Correct way to pass jump times to step size controllers if interpolation evaluated as part of vector field
- Issue comment#723johannahaffner2026-02-08 16:45Correct way to pass jump times to step size controllers if interpolation evaluated as part of vector field
- Pull request#728LoSpiri2026-02-07 14:11
- Issue comment#701RunnersNum402026-02-04 22:15NaN gradient only under `vmap` for ControlTerm with NaNs in control
- Pull request#727sammccallum2026-02-04 09:28
- Pull request#726poonai2026-02-01 14:54
- Issue comment#709poonai2026-02-01 13:58add support for rosenbrock method
- Issue comment#681patrick-kidger2026-02-01 13:51Improve error messages
- Issue#632patrick-kidger2026-02-01 13:46Issue with small time steps
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 200 stars here means stars gained during the window, not the repo's star count.