head to head · open source
Amphion vs attestix
Amphion has 10,305 GitHub stars, 853 forks, 174 open issues and last shipped 6 months ago. attestix has 722 stars, 83 forks, 21 open issues and last shipped 2 days ago. Amphion leads on adoption by 1,327% (10,305 vs 722 stars). Amphion is written in Python under MIT; attestix is written in Python under Apache-2.0. Amphion has attracted 8% as many forks as stars, attestix 11%. attestix 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 | attestix | |
|---|---|---|
| GitHub stars | ★ 10K | ★ 722 |
| License | MIT | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-03-25 | 2026-09-27 |
| Forks | ⑂ 853 | ⑂ 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 attestix if
- You want the attestix 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 attestix 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 attestix
Attestix is an open source attestation infrastructure for AI agents that provides DID based agent identity, W3C Verifiable Credentials, an EU AI Act compliance layer, delegation chains, and reputation scoring, and it is aimed at teams building or operating autonomous agents that need to prove identity and compliance to another agent, a regulator, or a downstream system.
read the full attestix overview →
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Frequently asked questions
Is Amphion or attestix more popular?
Amphion has 10,305 GitHub stars and attestix has 722. Amphion has the larger community by that measure.
Are Amphion and attestix free?
Both are open source. Amphion is licensed under MIT and attestix under Apache-2.0. Neither carries a licence fee.
What is the difference between Amphion and attestix?
Amphion is written in Python and attestix 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 attestix?
Choose Amphion if you want the larger community (10,305 stars) or its MIT licence terms. Choose attestix if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.