head to head · open source
ponytail vs B
ponytail has 182,779 GitHub stars, 10,094 forks, 270 open issues and last shipped 5 days ago. B has 5,202 stars, 3 forks, 1 open issues and last shipped 4 months ago. ponytail leads on adoption by 3,414% (182,779 vs 5,202 stars). ponytail is written in JavaScript under MIT; B is written in Python under MIT. ponytail has attracted 6% as many forks as stars, B 0%. ponytail was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), 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.
← all 20902 open source comparisons
Side by side
| ponytail | B | |
|---|---|---|
| GitHub stars | ★ 183K | ★ 5.2K |
| License | MIT | MIT |
| Written in | JavaScript | Python |
| Last push | 2026-10-29 | 2026-07-07 |
| Forks | ⑂ 10K | ⑂ 3 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ponytail if
- You weight community size — 183K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick B if
- You want the B feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and B 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 B
─── B ─── The Soul Wired Desktop Companion B is not just an AI : he is a digital lifeform designed to live on your desktop. Built with a soul first architecture, B observes your workflow, listens with neural precision, and interacts through a high performance, glassmorphic overlay. Explore the Vision • Architecture • Getting Started • Contributing • Privacy Demo B in action watch him observe, think, and respond. The Vision Traditional assistants wait for a command. B waits for a moment. B is designed as a proactive desktop companion . Using a 60fps event driven central nervous system, B synchronizes his…
More in AI & Machine Learning
Related comparisons
More AI Development Platforms projects
Compare either of these against the rest of the AI Development Platforms field.
Frequently asked questions
Is ponytail or B more popular?
ponytail has 182,779 GitHub stars and B has 5,202. ponytail has the larger community by that measure.
Are ponytail and B free?
Both are open source. ponytail is licensed under MIT and B under MIT. Neither carries a licence fee.
What is the difference between ponytail and B?
ponytail is written in JavaScript and B in Python. 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 B?
Choose ponytail if you want the larger community (182,779 stars) or its MIT licence terms. Choose B if its feature set, stack or MIT licence fits better. Both are self-hostable.