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Agents tracked: 440 Downloads (7d): 202M down 19.5% GitHub stars: 10.4M Releases (7d): 607 Agent status: all upSince last limit reset: Claude 28d · Codex 0d Updated Oct 21, 2026

PyMC3

Probabilistic programming library for Bayesian modeling.

ML and data science PyPI Apache-2.0

Used in agent projects
0
0.0% of 1,622 Python repos built with AI coding agents; 24 counting our dependency samples
Gid Score
40 /100
#2572 of 3,794 tools, #169 in ml and data science · ranking
Rank in ml and data science
#215 of 262
by use in those projects
Downloads
32.8K
PyPI, last 7 days, pymc3
GitHub stars
9,814
2,339 forks · last push Oct 19, 2026

How PyMC3 is used

PyMC3 is a dependency in 0 of the 6,208 public GitHub projects set up for AI coding agents that we scanned, too few to describe it from them alone. Our scan also samples projects by dependency (Solana 2,661, Ethereum and EVM 1,496, 3D and games 2,818, agent frameworks and SDKs 10,983); counting those, it appears in 24 projects, and what it is used with below comes from all of them. Projects that use it most often also use attrs (100.0%), Babel (Python) (100.0%), Bleach (100.0%).

PyMC3 popularity over time

Top tools by Gid Score

PyMC3: downloads per weekPyPI, pymc3 32,608

Gid Score 40: downloads 32, use in agent projects 30, GitHub stars 50, downloads trend 58 (each 0-100). How it is calculated.

Often used with PyMC3

attrs100.0% of PyMC3 projects · 144.4× more than average
Babel (Python)100.0% of PyMC3 projects · 443.4× more than average
Bleach100.0% of PyMC3 projects · 443.4× more than average
Bokeh100.0% of PyMC3 projects · 2069.3× more than average
CFFI100.0% of PyMC3 projects · 155.2× more than average
chardet (Python)100.0% of PyMC3 projects · 248.3× more than average
Click100.0% of PyMC3 projects · 40.1× more than average

From all 24 projects in our scan that use PyMC3, including the dependency samples.

How PyMC3 is funded

Most funded tools

Open Collective: PyMC

Received, last 12 months$10,486 Oct 2025 – Sep 2026
Estimated annual budget$10,486 Open Collective's estimate
Balance$13,920
Raised since the start$48,978 · $35,058 paid out
Typical month median, last 12 months$0 · $6 over 24 months
Last 12 months vs the 12 before+672%
Contributors, last 12 months2

Top company backers all time

NumFOCUS$15,106 since Dec 2025

Oct 2021Sep 2026

Money by month, last five years. First money received in Jun 2021. The typical month is the median: one big one-off donation does not move it.

Open Collective lists pymc-devs/pymc3 as this collective's repository.

USD after payment processor fees, as Open Collective reports it; fiscal host NumFOCUS. Source

Install

Alternatives to PyMC3

All ml and data science

In our scan, none of the most used tools in ML and data science does the same job as PyMC3: they are add-ons, companions or tools for a different task.

More in ML and data science: NumPy pandas scikit-learn SciPy PyTorch Sentence Transformers Hugging Face Transformers NetworkX

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