--- title: "dia2 vs Amphion" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/nari-labs-dia2-vs-open-mmlab-amphion" tools: ["nari-labs-dia2", "open-mmlab-amphion"] --- # dia2 vs Amphion *GraphCanon updated Jul 11, 2026* ## Verdict Pick dia2 when license: dia2 is Apache-2.0, Amphion is MIT; pick Amphion when license: Amphion is MIT, dia2 is Apache-2.0. [dia2](https://github.com/nari-labs/dia2) reports 1.2k GitHub stars, 99 forks, and 5 open issues, last pushed Nov 29, 2025. [Amphion](https://openhlt.github.io/amphion/) has 9.9k stars, 822 forks, and 175 open issues, last pushed Mar 25, 2026. Figures are from public GitHub metadata via [dia2's repository](https://github.com/nari-labs/dia2) and [Amphion's repository](https://github.com/open-mmlab/Amphion). | | [dia2](/tools/nari-labs-dia2.md) | [Amphion](/tools/open-mmlab-amphion.md) | | --- | --- | --- | | Tagline | TTS model capable of streaming conversational audio in realtime. | 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, | | Stars | 1,154 | 9,927 | | Forks | 99 | 822 | | Open issues | 5 | 175 | | Language | Python | Python | | Adopt for | - | - | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | MIT | | Categories | Speech & Audio | Speech & Audio, Computer Vision, Inference & Serving | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [dia2](/tools/nari-labs-dia2.md) | [Amphion](/tools/open-mmlab-amphion.md) | | --- | --- | --- | | Days since push | 224d | 107d | | Open issues (now) | 5 | 175 | | Full report | [trust report](/tools/nari-labs-dia2/trust.md) | [trust report](/tools/open-mmlab-amphion/trust.md) | ## Choose when ### Choose dia2 if… - License: dia2 is Apache-2.0, Amphion is MIT. - Tags unique to dia2: text-to-speech, python, open-weight. - Leaner open-issue backlog (5). ### Choose Amphion if… - License: Amphion is MIT, dia2 is Apache-2.0. - Tags unique to Amphion: audioldm, audio-synthesis, audio-generation, emilia. - Also covers Computer Vision, Inference & Serving. - Amphion ships Docker support for self-hosted deployment. ## When NOT to use dia2 - Last GitHub push was 225 days ago (slowing maintenance, Nov 29, 2025). Validate activity before betting a new project on dia2. ## When NOT to use Amphion - Last GitHub push was 108 days ago (slowing maintenance, Mar 25, 2026). Validate activity before betting a new project on Amphion. - Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. ## Common questions ### What is the difference between dia2 and Amphion? dia2: TTS model capable of streaming conversational audio in realtime.. Amphion: 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, . See the comparison table for live GitHub stats and shared categories. ### When should I choose dia2 over Amphion? Choose dia2 over Amphion when License: dia2 is Apache-2.0, Amphion is MIT; Tags unique to dia2: text-to-speech, python, open-weight; Leaner open-issue backlog (5). ### When should I choose Amphion over dia2? Choose Amphion over dia2 when License: Amphion is MIT, dia2 is Apache-2.0; Tags unique to Amphion: audioldm, audio-synthesis, audio-generation, emilia; Also covers Computer Vision, Inference & Serving; Amphion ships Docker support for self-hosted deployment. ### When should I avoid dia2? Last GitHub push was 225 days ago (slowing maintenance, Nov 29, 2025). Validate activity before betting a new project on dia2. ### When should I avoid Amphion? Last GitHub push was 108 days ago (slowing maintenance, Mar 25, 2026). Validate activity before betting a new project on Amphion. Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. ### Is dia2 or Amphion more popular on GitHub? Amphion has more GitHub stars (9,927 vs 1,154). Stars measure visibility, not whether either tool fits your constraints. ### Are dia2 and Amphion open source? Yes - both are open-source projects on GitHub (dia2: Apache-2.0, Amphion: MIT). ### Where can I find alternatives to dia2 or Amphion? GraphCanon lists graph-backed alternatives at [dia2 alternatives](/tools/nari-labs-dia2/alternatives) and [Amphion alternatives](/tools/open-mmlab-amphion/alternatives) ([dia2 markdown twin](/tools/nari-labs-dia2/alternatives.md), [Amphion markdown twin](/tools/open-mmlab-amphion/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/nari-labs-dia2-vs-open-mmlab-amphion.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, dia2 or Amphion? dia2: Slowing. Amphion: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for dia2 and Amphion? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [dia2 trust report](/tools/nari-labs-dia2/trust); [Amphion trust report](/tools/open-mmlab-amphion/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=nari-labs-dia2`](/api/graphcanon/graph?tool=nari-labs-dia2) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_