head to head · open source
Amphion vs UTMStack
Amphion has 10,330 GitHub stars, 856 forks, 174 open issues and last shipped 8 months ago. UTMStack has 592 stars, 83 forks, 141 open issues and last shipped 2 days ago. Amphion leads on adoption by 1,645% (10,330 vs 592 stars). Amphion is written in Python under MIT; UTMStack is written in TypeScript under AGPL-3.0. Amphion has attracted 8% as many forks as stars, UTMStack 14%. UTMStack was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Amphion | UTMStack | |
|---|---|---|
| GitHub stars | ★ 10K | ★ 592 |
| License | MIT | AGPL-3.0 |
| Written in | Python | TypeScript |
| Last push | 2026-03-25 | 2026-11-03 |
| Forks | ⑂ 856 | ⑂ 83 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Amphion if
- You weight community size — 10K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick UTMStack if
- You want the UTMStack feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and UTMStack fits your workflow better
About Amphion
Amphion: An Open Source Audio, Music, and Speech Generation Toolkit .svg" Amphion (/æmˈfaɪən/) is a toolkit for Audio, Music, and Speech Generation. Its purpose is to support reproducible research and help junior researchers and engineers get started in the field of audio, music, and speech generation research and development. Amphion offers a unique feature: visualizations of classic models or architectures. We believe that these visualizations are beneficial for junior researchers and engineers who wish to gain a better understanding of the model. The North Star objective of Amphion is to offer a platform for…
read the full Amphion overview →
About UTMStack
[!IMPORTANT] ⚠️ UPGRADE NOTIFICATION and UTMStack v10 End of Life Notice UTMStack v10 will be sunset on December 5, 2026. As of today, v10 is no longer receiving any new features and will only receive critical fixes until the sunset date. After December 5, 2026, v10 will no longer be supported. 👉 All users must upgrade to v11 as soon as possible using the upgrade package. Full guide here: UTMStack Enterprise ready SIEM and XDR powered by Real Time correlation and Threat Intelligence Introduction Welcome to the UTMStack open source project! UTMStack is a unified threat management platform that merges SIEM…
read the full UTMStack overview →
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Frequently asked questions
Is Amphion or UTMStack more popular?
Amphion has 10,330 GitHub stars and UTMStack has 592. Amphion has the larger community by that measure.
Are Amphion and UTMStack free?
Both are open source. Amphion is licensed under MIT and UTMStack under AGPL-3.0. Neither carries a licence fee.
What is the difference between Amphion and UTMStack?
Amphion is written in Python and UTMStack 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, Amphion or UTMStack?
Choose Amphion if you want the larger community (10,330 stars) or its MIT licence terms. Choose UTMStack if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.