Comparison
MARS5-TTS vs chatterbox-tts-api
Verdict
Pick MARS5-TTS if mARS5-TTS by CAMB.AI features advanced capabilities in text-to-speech synthesis with an emphasis on voice cloning and prosody control; pick chatterbox-tts-api if chatterbox-TTS-API is a locally hosted Python-based text-to-speech API with capabilities similar to ElevenLabs, offering an OpenAI-compatible interface for generating voice-cloned speech.
Markdown twin · MARS5-TTS alternatives · chatterbox-tts-api alternatives
GraphCanon updated 1w
vs
Trust & integrity
| Signal | MARS5-TTS | chatterbox-tts-api |
|---|---|---|
| Maintenance | Dormant (727d since push) As of 3w · github_public_v1 | Slowing (232d since push) As of 1w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 3w · github_public_v1 | Not a fork · Personal account As of 1w · github_public_v1 |
| OSV dependency advisories | No published findings from this source as of 2026-07-11 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
- MARS5-TTS
- MARS5 speech model TTS from CAMB.AI
- chatterbox-tts-api
- Local OpenAI-compatible text-to-speech API using Chatterbox
Stars
- MARS5-TTS
- 2.8k
- chatterbox-tts-api
- 666
Forks
- MARS5-TTS
- 245
- chatterbox-tts-api
- 152
Open issues
- MARS5-TTS
- 11
- chatterbox-tts-api
- 16
Language
- MARS5-TTS
- Jupyter Notebook
- chatterbox-tts-api
- Python
Adopt for
- MARS5-TTS
- MARS5-TTS by CAMB.AI features advanced capabilities in text-to-speech synthesis with an emphasis on voice cloning and prosody control.
- chatterbox-tts-api
- Chatterbox-TTS-API is a locally hosted Python-based text-to-speech API with capabilities similar to ElevenLabs, offering an OpenAI-compatible interface for generating voice-cloned speech.
Persona
- MARS5-TTS
- -
- chatterbox-tts-api
- -
Runtime
- MARS5-TTS
- -
- chatterbox-tts-api
- -
License
- MARS5-TTS
- The tool is licensed under AGPL-3.0, an open-source license that requires any modifications or derivatives to also be shared under the same terms.
- chatterbox-tts-api
- Chatterbox-TTS-API is distributed under the AGPL-3.0 license, ensuring any modifications or derivative works must be shared openly.
Last pushed
- MARS5-TTS
- Aug 1, 2024
- chatterbox-tts-api
- Dec 23, 2025
Categories
- MARS5-TTS
- Speech & Audio
- chatterbox-tts-api
- Speech & Audio
Trust and health
Maintenance
- MARS5-TTS
- Dormant (18%)
- chatterbox-tts-api
- Slowing (36%)
Days since push
- MARS5-TTS
- 727d
- chatterbox-tts-api
- 232d
Open issues (now)
- MARS5-TTS
- 11
- chatterbox-tts-api
- 16
Owner type
- MARS5-TTS
- Organization
- chatterbox-tts-api
- User
OSV dependency advisories
- MARS5-TTS
- No published findings from this source as of 2026-07-11
- chatterbox-tts-api
- No lockfile (source not queried)
Full report
- MARS5-TTS
- Trust report
- chatterbox-tts-api
- Trust report
Choose MARS5-TTS if…
- MARS5-TTS is primarily Jupyter Notebook; chatterbox-tts-api is Python.
- Pricing: Open-source version is free for non-commercial use; commercial licenses are available upon request by contacting help@camb.ai..
- Requirements: Supports custom development through Docker, allowing you to build a base image and extend with your own inference scripts.; Docker integration provides flexibility but requires users to have the necessary environment setup for usage..
- Tags unique to MARS5-TTS: docker-support, jupyter-notebook, prosody, speech-synthesis.
- When you have projects requiring nuanced prosody control for more natural sounding synthesized speech, as MARS5-TTS is specifically highlighted for its prosodic synthesis abilities.
When NOT to use MARS5-TTS
- When you require immediate access to pre-built output-generating Docker images, since as of now these are not yet available despite plans for their future addition.
- If your project needs a model that does not involve the GNU AGPL-3.0 license, because this might impose restrictions on how derivative works can be distributed.
Choose chatterbox-tts-api if…
- chatterbox-tts-api is primarily Python; MARS5-TTS is Jupyter Notebook.
- Requirements: Requires a local setup environment that supports CUDA for optimal performance; Docker can simplify deployment..
- Tags unique to chatterbox-tts-api: ai, chatgpt, chatterbox, cuda.
- When you need a self-hosted solution that mirrors the functionality of ElevenLabs or other proprietary TTS services and requires compatibility with existing ecosystems like Open WebUI or AnythingLLM.
When NOT to use chatterbox-tts-api
- If you require integrations specific to ElevenLabs' proprietary voice models as Chatterbox-TTS-API, despite its capabilities, does not directly support their unique voice libraries.
- For users needing a fully managed service without the complexities of local deployment and maintenance, like that offered by cloud-based TTS providers.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (Camb-ai/MARS5-TTS) · observed Jul 29, 2026
- GitHub forks (Camb-ai/MARS5-TTS) · observed Jul 29, 2026
- Last push (Camb-ai/MARS5-TTS) · observed Aug 1, 2024
- License file (AGPL-3.0) · observed Jul 29, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (travisvn/chatterbox-tts-api) · observed Aug 13, 2026
- GitHub forks (travisvn/chatterbox-tts-api) · observed Aug 13, 2026
- Last push (travisvn/chatterbox-tts-api) · observed Dec 23, 2025
- License file (AGPL-3.0) · observed Aug 13, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
GitHub stars on cards: MARS5-TTS 2.8k · chatterbox-tts-api 666 (synced Jul 29, 2026).
Common questions
- What is the difference between MARS5-TTS and chatterbox-tts-api?
- MARS5-TTS: MARS5 speech model TTS from CAMB.AI. chatterbox-tts-api: Local OpenAI-compatible text-to-speech API using Chatterbox. See the comparison table for live GitHub stats and shared categories.
- When should I choose MARS5-TTS over chatterbox-tts-api?
- Choose MARS5-TTS over chatterbox-tts-api when MARS5-TTS is primarily Jupyter Notebook; chatterbox-tts-api is Python; Pricing: Open-source version is free for non-commercial use; commercial licenses are available upon request by contacting help@camb.ai.; Requirements: Supports custom development through Docker, allowing you to build a base image and extend with your own inference scripts.; Docker integration provides flexibility but requires users to have the necessary environment setup for usage.; Tags unique to MARS5-TTS: docker-support, jupyter-notebook, prosody, speech-synthesis; When you have projects requiring nuanced prosody control for more natural sounding synthesized speech, as MARS5-TTS is specifically highlighted for its prosodic synthesis abilities.
- When should I choose chatterbox-tts-api over MARS5-TTS?
- Choose chatterbox-tts-api over MARS5-TTS when chatterbox-tts-api is primarily Python; MARS5-TTS is Jupyter Notebook; Requirements: Requires a local setup environment that supports CUDA for optimal performance; Docker can simplify deployment.; Tags unique to chatterbox-tts-api: ai, chatgpt, chatterbox, cuda; When you need a self-hosted solution that mirrors the functionality of ElevenLabs or other proprietary TTS services and requires compatibility with existing ecosystems like Open WebUI or AnythingLLM.
- When should I avoid MARS5-TTS?
- When you require immediate access to pre-built output-generating Docker images, since as of now these are not yet available despite plans for their future addition. If your project needs a model that does not involve the GNU AGPL-3.0 license, because this might impose restrictions on how derivative works can be distributed.
- When should I avoid chatterbox-tts-api?
- If you require integrations specific to ElevenLabs' proprietary voice models as Chatterbox-TTS-API, despite its capabilities, does not directly support their unique voice libraries. For users needing a fully managed service without the complexities of local deployment and maintenance, like that offered by cloud-based TTS providers.
- Is MARS5-TTS or chatterbox-tts-api more popular on GitHub?
- MARS5-TTS has more GitHub stars (2,816 vs 666). Stars measure visibility, not whether either tool fits your constraints.
- Are MARS5-TTS and chatterbox-tts-api open source?
- Yes - both are open-source projects on GitHub (MARS5-TTS: AGPL-3.0, chatterbox-tts-api: AGPL-3.0).
- Where can I find alternatives to MARS5-TTS or chatterbox-tts-api?
- GraphCanon lists graph-backed alternatives at MARS5-TTS alternatives and chatterbox-tts-api alternatives (MARS5-TTS markdown twin, chatterbox-tts-api 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, MARS5-TTS or chatterbox-tts-api?
- MARS5-TTS: Dormant. chatterbox-tts-api: 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 MARS5-TTS and chatterbox-tts-api?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: MARS5-TTS trust report; chatterbox-tts-api trust report.