--- title: "PhotoSketch vs Amphion" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/mtli-photosketch-vs-open-mmlab-amphion" tools: ["mtli-photosketch", "open-mmlab-amphion"] --- # PhotoSketch vs Amphion *GraphCanon updated Jul 11, 2026* ## Verdict Pick PhotoSketch when license: PhotoSketch is Other, Amphion is MIT; pick Amphion when license: Amphion is MIT, PhotoSketch is Other. [PhotoSketch](http://www.cs.cmu.edu/~mengtial/proj/sketch/) reports 486 GitHub stars, 85 forks, and 5 open issues, last pushed May 10, 2023. [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 [PhotoSketch's repository](https://github.com/mtli/PhotoSketch) and [Amphion's repository](https://github.com/open-mmlab/Amphion). | | [PhotoSketch](/tools/mtli-photosketch.md) | [Amphion](/tools/open-mmlab-amphion.md) | | --- | --- | --- | | Tagline | Code for Photo-Sketching: Inferring Contour Drawings from Images :dog: | 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 | 486 | 9,927 | | Forks | 85 | 822 | | Open issues | 5 | 175 | | Language | Python | Python | | Adopt for | - | - | | Persona | - | - | | Runtime | - | - | | License | Other | MIT | | Categories | Computer Vision | Inference & Serving, Speech & Audio, Computer Vision | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [PhotoSketch](/tools/mtli-photosketch.md) | [Amphion](/tools/open-mmlab-amphion.md) | | --- | --- | --- | | Maintenance | Dormant (18%) | Slowing (36%) | | Days since push | 1158d | 107d | | Open issues (now) | 5 | 175 | | Owner type | User | Organization | | Full report | [trust report](/tools/mtli-photosketch/trust.md) | [trust report](/tools/open-mmlab-amphion/trust.md) | ## Choose when ### Choose PhotoSketch if… - License: PhotoSketch is Other, Amphion is MIT. - Tags unique to PhotoSketch: sketch, ai, python, graphics. - Leaner open-issue backlog (5). ### Choose Amphion if… - License: Amphion is MIT, PhotoSketch is Other. - Tags unique to Amphion: audioldm, audio-synthesis, audio-generation, emilia. - Also covers Inference & Serving, Speech & Audio. - Amphion ships Docker support for self-hosted deployment. ## When NOT to use PhotoSketch - Last GitHub push was 1159 days ago (dormant maintenance, May 10, 2023). Validate activity before betting a new project on PhotoSketch. ## 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 PhotoSketch and Amphion? PhotoSketch: Code for Photo-Sketching: Inferring Contour Drawings from Images :dog:. 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 PhotoSketch over Amphion? Choose PhotoSketch over Amphion when License: PhotoSketch is Other, Amphion is MIT; Tags unique to PhotoSketch: sketch, ai, python, graphics; Leaner open-issue backlog (5). ### When should I choose Amphion over PhotoSketch? Choose Amphion over PhotoSketch when License: Amphion is MIT, PhotoSketch is Other; Tags unique to Amphion: audioldm, audio-synthesis, audio-generation, emilia; Also covers Inference & Serving, Speech & Audio; Amphion ships Docker support for self-hosted deployment. ### When should I avoid PhotoSketch? Last GitHub push was 1159 days ago (dormant maintenance, May 10, 2023). Validate activity before betting a new project on PhotoSketch. ### 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 PhotoSketch or Amphion more popular on GitHub? Amphion has more GitHub stars (9,927 vs 486). Stars measure visibility, not whether either tool fits your constraints. ### Are PhotoSketch and Amphion open source? Yes - both are open-source projects on GitHub (PhotoSketch: Other, Amphion: MIT). ### Where can I find alternatives to PhotoSketch or Amphion? GraphCanon lists graph-backed alternatives at [PhotoSketch alternatives](/tools/mtli-photosketch/alternatives) and [Amphion alternatives](/tools/open-mmlab-amphion/alternatives) ([PhotoSketch markdown twin](/tools/mtli-photosketch/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/mtli-photosketch-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, PhotoSketch or Amphion? PhotoSketch: Dormant. 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 PhotoSketch and Amphion? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [PhotoSketch trust report](/tools/mtli-photosketch/trust); [Amphion trust report](/tools/open-mmlab-amphion/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=mtli-photosketch`](/api/graphcanon/graph?tool=mtli-photosketch) - 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/_