head to head · open source
Amphion vs bernstein
Amphion has 10,305 GitHub stars, 853 forks, 174 open issues and last shipped 6 months ago. bernstein has 1,312 stars, 176 forks, 368 open issues and last shipped today. Amphion leads on adoption by 685% (10,305 vs 1,312 stars). Amphion is written in Python under MIT; bernstein is written in Python under Apache-2.0. Amphion has attracted 8% as many forks as stars, bernstein 13%. bernstein 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 | bernstein | |
|---|---|---|
| GitHub stars | ★ 10K | ★ 1.3K |
| License | MIT | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-03-25 | 2026-09-29 |
| Forks | ⑂ 853 | ⑂ 176 |
| 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 bernstein if
- You want the bernstein feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and bernstein fits your workflow better
About Amphion
Amphion is an MIT licensed Python toolkit for audio, music and speech generation that gives researchers and engineers a shared, reproducible base for tasks such as text to speech, singing voice synthesis, voice conversion and text to audio.
read the full Amphion overview →
About bernstein
Bernstein is an open source, Apache 2.0 governance and orchestration framework for fleets of AI agents, built for teams that want to write their operating rules declaratively, have those rules enforced at runtime, and keep a verifiable, replayable record of what every agent did.
read the full bernstein overview →
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Frequently asked questions
Is Amphion or bernstein more popular?
Amphion has 10,305 GitHub stars and bernstein has 1,312. Amphion has the larger community by that measure.
Are Amphion and bernstein free?
Both are open source. Amphion is licensed under MIT and bernstein under Apache-2.0. Neither carries a licence fee.
What is the difference between Amphion and bernstein?
Amphion is written in Python and bernstein 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, Amphion or bernstein?
Choose Amphion if you want the larger community (10,305 stars) or its MIT licence terms. Choose bernstein if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.