Comparison
TTS vs CosyVoice
Verdict
Pick TTS when license: TTS is MPL-2.0, CosyVoice is Apache-2.0; pick CosyVoice when license: CosyVoice is Apache-2.0, TTS is MPL-2.0.
Markdown twin · TTS alternatives · CosyVoice alternatives
GraphCanon updated today
Trust & integrity
| Signal | TTS | CosyVoice |
|---|---|---|
| Maintenance | Dormant (693d since push) As of today · github_public_v1 | Steady (46d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Organization account As of today · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| Security (OSV) | 137 low (137 low) As of today · osv@v1 | No lockfile As of today · none |
Tagline
- TTS
- 🐸💬 - a deep learning toolkit for Text-to-Speech, battle-tested in research and production
- CosyVoice
- Multi-lingual large voice generation model with full-stack abilities for inference, training and deployment.
Stars
- TTS
- 46k
- CosyVoice
- 22k
Forks
- TTS
- 6.2k
- CosyVoice
- 2.5k
Open issues
- TTS
- 4
- CosyVoice
- 767
Language
- TTS
- Python
- CosyVoice
- Python
Adopt for
- TTS
- -
- CosyVoice
- CosyVoice is a Python-based multi-lingual large voice generation model. It supports extensive capabilities including fine-tuning, TTS (Text-To-Speech), and natural language generation.
Persona
- TTS
- -
- CosyVoice
- -
Runtime
- TTS
- -
- CosyVoice
- -
License
- TTS
- MPL-2.0
- CosyVoice
- Apache-2.0
Last pushed
- TTS
- Aug 16, 2024
- CosyVoice
- May 25, 2026
Categories
- TTS
- Model Training, Speech & Audio, Inference & Serving
- CosyVoice
- Model Training, Speech & Audio, Inference & Serving
Trust and health
Maintenance
- TTS
- Dormant (18%)
- CosyVoice
- Steady (60%)
Days since push
- TTS
- 693d
- CosyVoice
- 46d
Open issues (now)
- TTS
- 4
- CosyVoice
- 767
Security scan
- TTS
- 137 low (137 low)
- CosyVoice
- No lockfile
Full report
- TTS
- Trust report
- CosyVoice
- Trust report
Choose TTS if…
- License: TTS is MPL-2.0, CosyVoice is Apache-2.0.
- Tags unique to TTS: deep-learning, glow-tts, python, hifigan.
- TTS ships Docker support for self-hosted deployment.
When NOT to use TTS
- Last GitHub push was 694 days ago (dormant maintenance, Aug 16, 2024). Validate activity before betting a new project on TTS.
- Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge.
- Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic.
Choose CosyVoice if…
- License: CosyVoice is Apache-2.0, TTS is MPL-2.0.
- Tags unique to CosyVoice: cantonese, audio-generation, chinese, english.
- When you need support for multiple languages like Cantonese, Chinese, English, Japanese, and Korean.
When NOT to use CosyVoice
- If your project specifically requires fine-tuned performance in languages not supported by CosyVoice such as Arabic or Spanish.
- When strict real-time speech synthesis requirements are essential, as CosyVoice may face delays depending on the environment's computational power and model complexity.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (coqui-ai/TTS) · observed Jul 11, 2026
- GitHub forks (coqui-ai/TTS) · observed Jul 11, 2026
- Last push (coqui-ai/TTS) · observed Aug 16, 2024
- License file (MPL-2.0) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (FunAudioLLM/CosyVoice) · observed Jul 11, 2026
- GitHub forks (FunAudioLLM/CosyVoice) · observed Jul 11, 2026
- Last push (FunAudioLLM/CosyVoice) · observed May 25, 2026
- License file (Apache-2.0) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: TTS 46k · CosyVoice 22k (synced Jul 11, 2026).
Common questions
- What is the difference between TTS and CosyVoice?
- TTS: 🐸💬 - a deep learning toolkit for Text-to-Speech, battle-tested in research and production. CosyVoice: Multi-lingual large voice generation model with full-stack abilities for inference, training and deployment.. See the comparison table for live GitHub stats and shared categories.
- When should I choose TTS over CosyVoice?
- Choose TTS over CosyVoice when License: TTS is MPL-2.0, CosyVoice is Apache-2.0; Tags unique to TTS: deep-learning, glow-tts, python, hifigan; TTS ships Docker support for self-hosted deployment.
- When should I choose CosyVoice over TTS?
- Choose CosyVoice over TTS when License: CosyVoice is Apache-2.0, TTS is MPL-2.0; Tags unique to CosyVoice: cantonese, audio-generation, chinese, english; When you need support for multiple languages like Cantonese, Chinese, English, Japanese, and Korean.
- When should I avoid TTS?
- Last GitHub push was 694 days ago (dormant maintenance, Aug 16, 2024). Validate activity before betting a new project on TTS. Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge. Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic.
- When should I avoid CosyVoice?
- If your project specifically requires fine-tuned performance in languages not supported by CosyVoice such as Arabic or Spanish. When strict real-time speech synthesis requirements are essential, as CosyVoice may face delays depending on the environment's computational power and model complexity.
- Is TTS or CosyVoice more popular on GitHub?
- TTS has more GitHub stars (45,737 vs 22,089). Stars measure visibility, not whether either tool fits your constraints.
- Are TTS and CosyVoice open source?
- Yes - both are open-source projects on GitHub (TTS: MPL-2.0, CosyVoice: Apache-2.0).
- Where can I find alternatives to TTS or CosyVoice?
- GraphCanon lists graph-backed alternatives at TTS alternatives and CosyVoice alternatives (TTS markdown twin, CosyVoice markdown twin), 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 mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, TTS or CosyVoice?
- TTS: Dormant. CosyVoice: Steady. 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 TTS and CosyVoice?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: TTS trust report; CosyVoice trust report.