head to head · open source
ponytail vs open-science
ponytail has 183,878 GitHub stars, 10,143 forks, 270 open issues and last shipped 7 days ago. open-science has 5,435 stars, 551 forks, 40 open issues and last shipped yesterday. ponytail leads on adoption by 3,283% (183,878 vs 5,435 stars). ponytail is written in JavaScript under MIT; open-science is written in TypeScript under Apache-2.0. ponytail has attracted 6% as many forks as stars, open-science 10%. open-science was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (agent-skills), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| ponytail | open-science | |
|---|---|---|
| GitHub stars | ★ 184K | ★ 5.4K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-10-29 | 2026-11-04 |
| Forks | ⑂ 10K | ⑂ 551 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ponytail if
- You weight community size — 184K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick open-science if
- You want the open-science feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and open-science fits your workflow better
About ponytail
Ponytail He says nothing. He writes one line. It works. 54% less code (up to 94%) · 20% cheaper · 27% faster · 100% safe Measured on real Claude Code sessions editing a real open source repo (FastAPI + React), against the same agent with no skill. 54% is the mean across 12 feature tasks (Haiku 4.5, n=4); it reaches 94% where an agent over builds (a date picker) and is near zero where the code is already minimal. ponytail keeps every safety guard while a bare "write one liners" prompt drops one. (The earlier single shot benchmark reported 80 94% as a flat figure; against a fair agentic…
read the full ponytail overview →
About open-science
AIPOCH Open Science AI research workbench for reproducible science — open source, local first, and model agnostic. AIPOCH Open Science is an AI research workbench for scientists and researchers, developed by AIPOCH with an open source, local first, model agnostic approach. It enables reproducible, inspectable research with scientific AI agents, Python and R execution, scientific data connectors, and cross platform support for macOS, Windows, and Linux. Create a project, describe your research goal in plain language, and let the agents read files, search the web, run code, query scientific data sources, and…
read the full open-science overview →
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Frequently asked questions
Is ponytail or open-science more popular?
ponytail has 183,878 GitHub stars and open-science has 5,435. ponytail has the larger community by that measure.
Are ponytail and open-science free?
Both are open source. ponytail is licensed under MIT and open-science under Apache-2.0. Neither carries a licence fee.
What is the difference between ponytail and open-science?
ponytail is written in JavaScript and open-science in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ponytail or open-science?
Choose ponytail if you want the larger community (183,878 stars) or its MIT licence terms. Choose open-science if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.