Comparison
ChatTTS vs VoxCPM
Verdict
Pick ChatTTS if chatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English; pick VoxCPM if voxCPM is a tokenizer-free TTS tool excelling in multilingual speech generation, creative voice design, and lifelike cloning.
Markdown twin · ChatTTS alternatives · VoxCPM alternatives
GraphCanon updated 1w
Trust & integrity
| Signal | ChatTTS | VoxCPM |
|---|---|---|
| Maintenance | Slowing (127d since push) As of 1w · github_public_v1 | Active (20d since push) As of 3w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 1w · github_public_v1 | Not a fork · Organization account As of 3w · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- ChatTTS
- A generative speech model for daily dialogue
- VoxCPM
- Tokenizer-Free TTS for Multilingual Speech Generation, Creative Voice Design, and True-to-Life Cloning
Stars
- ChatTTS
- 40k
- VoxCPM
- 34k
Forks
- ChatTTS
- 4.3k
- VoxCPM
- 3.9k
Open issues
- ChatTTS
- 60
- VoxCPM
- 99
Language
- ChatTTS
- Python
- VoxCPM
- Python
Adopt for
- ChatTTS
- ChatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English.
- VoxCPM
- VoxCPM is a tokenizer-free TTS tool excelling in multilingual speech generation, creative voice design, and lifelike cloning.
Persona
- ChatTTS
- -
- VoxCPM
- -
Runtime
- ChatTTS
- -
- VoxCPM
- -
License
- ChatTTS
- Licensed under AGPL-3.0, which allows for free use, distribution, and modification as long as these rights are maintained in derivative works.
- VoxCPM
- Apache-2.0
Last pushed
- ChatTTS
- Apr 10, 2026
- VoxCPM
- Jul 8, 2026
Categories
- ChatTTS
- AI Agents, Speech & Audio
- VoxCPM
- Inference & Serving, Speech & Audio
Trust and health
Maintenance
- ChatTTS
- Slowing (36%)
- VoxCPM
- Active (82%)
Days since push
- ChatTTS
- 127d
- VoxCPM
- 20d
Open issues (now)
- ChatTTS
- 60
- VoxCPM
- 99
Stars delta
- ChatTTS
- +140 (30d)
- VoxCPM
- Unknown
Open issues delta
- ChatTTS
- -1 (30d)
- VoxCPM
- Unknown
Full report
- ChatTTS
- Trust report
- VoxCPM
- Trust report
Shared compatibility
- Python · ChatTTS: Python runtime · VoxCPM: Python runtime
Choose ChatTTS if…
- License: ChatTTS is AGPL-3.0, VoxCPM is Apache-2.0.
- Requirements: Python-based implementation means that familiarity with Python is necessary for effective use..
- Tags unique to ChatTTS: agent, chatgpt, chattts, chinese language.
- Also covers AI Agents.
- Use ChatTTS when you require text-to-speech functionality for daily dialogue applications, especially those involving Chinese or English languages.
When NOT to use ChatTTS
- Avoid using ChatTTS in environments where the speech generation model is expected to handle complex technical jargon or specialized vocabulary, as it's optimized for daily conversation.
- Do not use ChatTTS if your project requires the integration of more than two languages simultaneously due to its current support for only Chinese and English.
Choose VoxCPM if…
- License: VoxCPM is Apache-2.0, ChatTTS is AGPL-3.0.
- Requirements: Python >= 3.10 (<3.13), PyTorch >= 2.5.0, CUDA >= 12.0.; For production deployment, Nano-vLLM is recommended for its high throughput and concurrent request support..
- Tags unique to VoxCPM: audio, deeplearning, minicpm, multilingual.
- Also covers Inference & Serving.
- When you need to generate high-quality, lifelike voice clones for multiple languages without the overhead of tokenizers.
When NOT to use VoxCPM
- If your project is constrained by hardware with less powerful GPUs than NVIDIA RTX 4090, as VoxCPM might not provide optimal real-time factor performance.
- When a simple text-to-speech solution suffices and does not require the advanced features like voice cloning or creative voice design that VoxCPM offers.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (2noise/ChatTTS) · observed Aug 16, 2026
- GitHub forks (2noise/ChatTTS) · observed Aug 16, 2026
- Last push (2noise/ChatTTS) · observed Apr 10, 2026
- License file (AGPL-3.0) · observed Aug 16, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (OpenBMB/VoxCPM) · observed Jul 29, 2026
- GitHub forks (OpenBMB/VoxCPM) · observed Jul 29, 2026
- Last push (OpenBMB/VoxCPM) · observed Jul 8, 2026
- License file (Apache-2.0) · observed Jul 29, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: ChatTTS 40k · VoxCPM 34k (synced Aug 16, 2026).
Common questions
- What is the difference between ChatTTS and VoxCPM?
- ChatTTS: A generative speech model for daily dialogue. VoxCPM: Tokenizer-Free TTS for Multilingual Speech Generation, Creative Voice Design, and True-to-Life Cloning. See the comparison table for live GitHub stats and shared categories.
- When should I choose ChatTTS over VoxCPM?
- Choose ChatTTS over VoxCPM when License: ChatTTS is AGPL-3.0, VoxCPM is Apache-2.0; Requirements: Python-based implementation means that familiarity with Python is necessary for effective use.; Tags unique to ChatTTS: agent, chatgpt, chattts, chinese language; Also covers AI Agents; Use ChatTTS when you require text-to-speech functionality for daily dialogue applications, especially those involving Chinese or English languages.
- When should I choose VoxCPM over ChatTTS?
- Choose VoxCPM over ChatTTS when License: VoxCPM is Apache-2.0, ChatTTS is AGPL-3.0; Requirements: Python >= 3.10 (<3.13), PyTorch >= 2.5.0, CUDA >= 12.0.; For production deployment, Nano-vLLM is recommended for its high throughput and concurrent request support.; Tags unique to VoxCPM: audio, deeplearning, minicpm, multilingual; Also covers Inference & Serving; When you need to generate high-quality, lifelike voice clones for multiple languages without the overhead of tokenizers.
- When should I avoid ChatTTS?
- Avoid using ChatTTS in environments where the speech generation model is expected to handle complex technical jargon or specialized vocabulary, as it's optimized for daily conversation. Do not use ChatTTS if your project requires the integration of more than two languages simultaneously due to its current support for only Chinese and English.
- When should I avoid VoxCPM?
- If your project is constrained by hardware with less powerful GPUs than NVIDIA RTX 4090, as VoxCPM might not provide optimal real-time factor performance. When a simple text-to-speech solution suffices and does not require the advanced features like voice cloning or creative voice design that VoxCPM offers.
- Is ChatTTS or VoxCPM more popular on GitHub?
- ChatTTS has more GitHub stars (39,768 vs 34,452). Stars measure visibility, not whether either tool fits your constraints.
- Are ChatTTS and VoxCPM open source?
- Yes - both are open-source projects on GitHub (ChatTTS: AGPL-3.0, VoxCPM: Apache-2.0).
- Where can I find alternatives to ChatTTS or VoxCPM?
- GraphCanon lists graph-backed alternatives at ChatTTS alternatives and VoxCPM alternatives (ChatTTS markdown twin, VoxCPM 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, ChatTTS or VoxCPM?
- ChatTTS: Slowing. VoxCPM: Active. 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 ChatTTS and VoxCPM?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: ChatTTS trust report; VoxCPM trust report.