The Stan Math Library is a C++ template library for automatic differentiation of any order using forward, reverse, and mixed modes. It includes a range of built-in functions for probabilistic modeling, linear algebra, and equation solving.
active 2023-08-15 → 2026-09-18 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 1131 days from 2023-08-15 to 2026-09-18. Pushes: 1,486 total, peak 20 in a day. Pull requests: 367 total, peak 6 in a day. Issues: 167 total, peak 8 in a day. Comments: 1,717 total, peak 24 in a day. Stars: 132 total, peak 2 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 |
|---|---|---|---|---|
| SteveBronder | 1.2K | 478 | 61 | 389 |
| WardBrian | 829 | 190 | 106 | 354 |
| andrjohns | 669 | 315 | 99 | 170 |
| stan-buildbot | 530 | 305 | 0 | 225 |
| syclik | 320 | 98 | 25 | 145 |
| spinkney | 171 | 48 | 8 | 80 |
| Franzi2114 | 165 | 1 | 3 | 100 |
| lingium | 86 | 6 | 12 | 36 |
| serban-nicusor-toptal | 58 | 26 | 23 | 8 |
| bob-carpenter | 43 | 1 | 0 | 31 |
| jachymb | 39 | 0 | 3 | 24 |
| avehtari | 30 | 2 | 3 | 19 |
| charlesm93 | 25 | 8 | 0 | 15 |
| rok-cesnovar | 18 | 1 | 1 | 6 |
| wds15 | 11 | 0 | 0 | 11 |
| jeanchristopheruel | 11 | 0 | 3 | 7 |
| bgoodri | 10 | 0 | 0 | 10 |
| dpsimpson | 10 | 0 | 2 | 7 |
| dependabot[bot] | 9 | 0 | 7 | 2 |
| MichaScant | 8 | 0 | 1 | 7 |
Recent activity
Latest issues, pull requests and releases
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 132 stars here means stars gained during the window, not the repo's star count.