--- title: "RealtimeTTS vs Amphion" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/koljab-realtimetts-vs-open-mmlab-amphion" tools: ["koljab-realtimetts", "open-mmlab-amphion"] --- # RealtimeTTS vs Amphion *GraphCanon updated Jul 11, 2026* ## Verdict Pick RealtimeTTS when tags unique to RealtimeTTS: text-to-speech, python, realtime, speech-synthesis; pick Amphion when tags unique to Amphion: audioldm, audio-synthesis, audio-generation, emilia. [RealtimeTTS](https://github.com/KoljaB/RealtimeTTS) reports 4.0k GitHub stars, 399 forks, and 125 open issues, last pushed May 31, 2026. [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 [RealtimeTTS's repository](https://github.com/KoljaB/RealtimeTTS) and [Amphion's repository](https://github.com/open-mmlab/Amphion). | | [RealtimeTTS](/tools/koljab-realtimetts.md) | [Amphion](/tools/open-mmlab-amphion.md) | | --- | --- | --- | | Tagline | Converts text to speech 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 | 3,986 | 9,927 | | Forks | 399 | 822 | | Open issues | 125 | 175 | | Language | Python | Python | | Adopt for | - | - | | Persona | - | - | | Runtime | - | - | | License | MIT | MIT | | Categories | Speech & Audio | Inference & Serving, Speech & Audio, Computer Vision | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [RealtimeTTS](/tools/koljab-realtimetts.md) | [Amphion](/tools/open-mmlab-amphion.md) | | --- | --- | --- | | Maintenance | Steady (60%) | Slowing (36%) | | Days since push | 40d | 107d | | Open issues (now) | 125 | 175 | | Owner type | User | Organization | | Security scan | No criticals | No lockfile | | Full report | [trust report](/tools/koljab-realtimetts/trust.md) | [trust report](/tools/open-mmlab-amphion/trust.md) | ## Shared compatibility - **Python**: [RealtimeTTS](/tools/koljab-realtimetts.md) - Python runtime; [Amphion](/tools/open-mmlab-amphion.md) - Python runtime ## Choose when ### Choose RealtimeTTS if… - Tags unique to RealtimeTTS: text-to-speech, python, realtime, speech-synthesis. - More recently updated (last pushed May 31, 2026). ### Choose Amphion if… - Tags unique to Amphion: audioldm, audio-synthesis, audio-generation, emilia. - Also covers Inference & Serving, Computer Vision. - Amphion ships Docker support for self-hosted deployment. ## 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 RealtimeTTS and Amphion? RealtimeTTS: Converts text to speech 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 RealtimeTTS over Amphion? Choose RealtimeTTS over Amphion when Tags unique to RealtimeTTS: text-to-speech, python, realtime, speech-synthesis; More recently updated (last pushed May 31, 2026). ### When should I choose Amphion over RealtimeTTS? Choose Amphion over RealtimeTTS when Tags unique to Amphion: audioldm, audio-synthesis, audio-generation, emilia; Also covers Inference & Serving, Computer Vision; Amphion ships Docker support for self-hosted deployment. ### 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 RealtimeTTS or Amphion more popular on GitHub? Amphion has more GitHub stars (9,927 vs 3,986). Stars measure visibility, not whether either tool fits your constraints. ### Are RealtimeTTS and Amphion open source? Yes - both are open-source projects on GitHub (RealtimeTTS: MIT, Amphion: MIT). ### Where can I find alternatives to RealtimeTTS or Amphion? GraphCanon lists graph-backed alternatives at [RealtimeTTS alternatives](/tools/koljab-realtimetts/alternatives) and [Amphion alternatives](/tools/open-mmlab-amphion/alternatives) ([RealtimeTTS markdown twin](/tools/koljab-realtimetts/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/koljab-realtimetts-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, RealtimeTTS or Amphion? RealtimeTTS: Steady. 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 RealtimeTTS and Amphion? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [RealtimeTTS trust report](/tools/koljab-realtimetts/trust); [Amphion trust report](/tools/open-mmlab-amphion/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=koljab-realtimetts`](/api/graphcanon/graph?tool=koljab-realtimetts) - 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/_