--- title: "kaldi vs Amphion" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/kaldi-asr-kaldi-vs-open-mmlab-amphion" tools: ["kaldi-asr-kaldi", "open-mmlab-amphion"] --- # kaldi vs Amphion *GraphCanon updated Jul 30, 2026* ## Verdict Pick kaldi if kaldi stands out among speech recognition toolkits with its comprehensive C++ libraries and strong community support for contributors; pick Amphion if amphion offers support for reproducible research in audio, music, and speech generation through Python dependencies and Docker images that junior researchers and engineers can readily use. [kaldi](http://kaldi-asr.org) reports 15k GitHub stars, 5.4k forks, and 260 open issues, last pushed Sep 22, 2025. [Amphion](https://openhlt.github.io/amphion/) has 10.0k stars, 830 forks, and 175 open issues, last pushed Mar 25, 2026. Figures are from public GitHub metadata via [kaldi's repository](https://github.com/kaldi-asr/kaldi) and [Amphion's repository](https://github.com/open-mmlab/Amphion). | | [kaldi](/tools/kaldi-asr-kaldi.md) | [Amphion](/tools/open-mmlab-amphion.md) | | --- | --- | --- | | Tagline | Kaldi Speech Recognition Toolkit | A toolkit for Audio, Music, and Speech Generation to support reproducible research | | Stars | 15,442 | 9,973 | | Forks | 5,355 | 830 | | Open issues | 260 | 175 | | Language | Shell | Python | | Adopt for | Kaldi stands out among speech recognition toolkits with its comprehensive C++ libraries and strong community support for contributors. | Amphion offers support for reproducible research in audio, music, and speech generation through Python dependencies and Docker images that junior researchers and engineers can readily use. | | Persona | - | - | | Runtime | - | - | | License | Other | MIT | | Categories | Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [kaldi](/tools/kaldi-asr-kaldi.md) | [Amphion](/tools/open-mmlab-amphion.md) | | --- | --- | --- | | Days since push | 310d | 125d | | Open issues (now) | 260 | 175 | | Full report | [trust report](/tools/kaldi-asr-kaldi/trust.md) | [trust report](/tools/open-mmlab-amphion/trust.md) | ## Decision facts: kaldi - **Adopt for:** Kaldi stands out among speech recognition toolkits with its comprehensive C++ libraries and strong community support for contributors. ## Decision facts: Amphion - **Adopt for:** Amphion offers support for reproducible research in audio, music, and speech generation through Python dependencies and Docker images that junior researchers and engineers can readily use. ## Choose when ### Choose kaldi if… - kaldi is primarily Shell; Amphion is Python. - License: kaldi is Other, Amphion is MIT. - Tags unique to kaldi: c-plus-plus, cuda, speaker-id, speaker-verification. - For developers preferring a deep customization of speech recognition algorithms in C++ ### Choose Amphion if… - Amphion is primarily Python; kaldi is Shell. - License: Amphion is MIT, kaldi is Other. - Tags unique to Amphion: audio-generation, music-generation, singing-voice-conversion, speech-synthesis. - Amphion ships Docker support for self-hosted deployment. - When you are new to the field of audio, music, or speech generation and seeking a toolkit that simplifies setup with Python dependencies and Docker images. ## When NOT to use kaldi - If you require extensive pre-built support and documentation for non-UNIX systems like Windows outside Cygwin environment - For users seeking a purely Python-based ecosystem for developing speech recognition applications without the need to compile C++ code ## When NOT to use Amphion - If you require advanced customization beyond what the provided Python packages offer, since Amphion caters more to getting started quickly without deep configuration. ## Common questions ### What is the difference between kaldi and Amphion? kaldi: Kaldi Speech Recognition Toolkit. Amphion: A toolkit for Audio, Music, and Speech Generation to support reproducible research. See the comparison table for live GitHub stats and shared categories. ### When should I choose kaldi over Amphion? Choose kaldi over Amphion when kaldi is primarily Shell; Amphion is Python; License: kaldi is Other, Amphion is MIT; Tags unique to kaldi: c-plus-plus, cuda, speaker-id, speaker-verification; For developers preferring a deep customization of speech recognition algorithms in C++. ### When should I choose Amphion over kaldi? Choose Amphion over kaldi when Amphion is primarily Python; kaldi is Shell; License: Amphion is MIT, kaldi is Other; Tags unique to Amphion: audio-generation, music-generation, singing-voice-conversion, speech-synthesis; Amphion ships Docker support for self-hosted deployment; When you are new to the field of audio, music, or speech generation and seeking a toolkit that simplifies setup with Python dependencies and Docker images. ### When should I avoid kaldi? If you require extensive pre-built support and documentation for non-UNIX systems like Windows outside Cygwin environment For users seeking a purely Python-based ecosystem for developing speech recognition applications without the need to compile C++ code ### When should I avoid Amphion? If you require advanced customization beyond what the provided Python packages offer, since Amphion caters more to getting started quickly without deep configuration. ### Is kaldi or Amphion more popular on GitHub? kaldi has more GitHub stars (15,442 vs 9,973). Stars measure visibility, not whether either tool fits your constraints. ### Are kaldi and Amphion open source? Yes - both are open-source projects on GitHub (kaldi: Other, Amphion: MIT). ### Where can I find alternatives to kaldi or Amphion? GraphCanon lists graph-backed alternatives at [kaldi alternatives](/tools/kaldi-asr-kaldi/alternatives) and [Amphion alternatives](/tools/open-mmlab-amphion/alternatives) ([kaldi markdown twin](/tools/kaldi-asr-kaldi/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/kaldi-asr-kaldi-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, kaldi or Amphion? kaldi: 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 kaldi and Amphion? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [kaldi trust report](/tools/kaldi-asr-kaldi/trust); [Amphion trust report](/tools/open-mmlab-amphion/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=kaldi-asr-kaldi`](/api/graphcanon/graph?tool=kaldi-asr-kaldi) - 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/_