Comparison
supertonic vs chatterbox-tts-api
Verdict
Pick supertonic if supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support; 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 · supertonic alternatives · chatterbox-tts-api alternatives
GraphCanon updated 1w
vs
Trust & integrity
| Signal | supertonic | chatterbox-tts-api |
|---|---|---|
| Maintenance | Very active (5d 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 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
- supertonic
- Lightning-Fast On-Device Multilingual TTS via ONNX
- chatterbox-tts-api
- Local OpenAI-compatible text-to-speech API using Chatterbox
Stars
- supertonic
- 14k
- chatterbox-tts-api
- 666
Forks
- supertonic
- 1.4k
- chatterbox-tts-api
- 152
Open issues
- supertonic
- 126
- chatterbox-tts-api
- 16
Language
- supertonic
- Swift
- chatterbox-tts-api
- Python
Adopt for
- supertonic
- Supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support.
- 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
- supertonic
- -
- chatterbox-tts-api
- -
Runtime
- supertonic
- -
- chatterbox-tts-api
- -
License
- supertonic
- MIT
- 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
- supertonic
- Jul 24, 2026
- chatterbox-tts-api
- Dec 23, 2025
Categories
- supertonic
- Speech & Audio
- chatterbox-tts-api
- Speech & Audio
Trust and health
Maintenance
- supertonic
- Very active (96%)
- chatterbox-tts-api
- Slowing (36%)
Days since push
- supertonic
- 5d
- chatterbox-tts-api
- 232d
Open issues (now)
- supertonic
- 126
- chatterbox-tts-api
- 16
Owner type
- supertonic
- Organization
- chatterbox-tts-api
- User
Full report
- supertonic
- Trust report
- chatterbox-tts-api
- Trust report
Shared compatibility
- Python · supertonic: Python runtime · chatterbox-tts-api: Python runtime
Choose supertonic if…
- supertonic is primarily Swift; chatterbox-tts-api is Python.
- License: supertonic is MIT, chatterbox-tts-api is AGPL-3.0.
- Tags unique to supertonic: cpp, csharp, flutter, go.
- When deploying text-to-speech functionality requires swift performance on-device in multiple languages
When NOT to use supertonic
- If the application is multilingual but does not require on-device processing capabilities
- For teams preferring a different primary development language other than Swift or those lacking familiarity with ONNX implementation details
Choose chatterbox-tts-api if…
- chatterbox-tts-api is primarily Python; supertonic is Swift.
- License: chatterbox-tts-api is AGPL-3.0, supertonic is MIT.
- 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 (supertone-inc/supertonic) · observed Jul 29, 2026
- GitHub forks (supertone-inc/supertonic) · observed Jul 29, 2026
- Last push (supertone-inc/supertonic) · observed Jul 24, 2026
- License file (MIT) · 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: supertonic 14k · chatterbox-tts-api 666 (synced Jul 29, 2026).
Common questions
- What is the difference between supertonic and chatterbox-tts-api?
- supertonic: Lightning-Fast On-Device Multilingual TTS via ONNX. 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 supertonic over chatterbox-tts-api?
- Choose supertonic over chatterbox-tts-api when supertonic is primarily Swift; chatterbox-tts-api is Python; License: supertonic is MIT, chatterbox-tts-api is AGPL-3.0; Tags unique to supertonic: cpp, csharp, flutter, go; When deploying text-to-speech functionality requires swift performance on-device in multiple languages.
- When should I choose chatterbox-tts-api over supertonic?
- Choose chatterbox-tts-api over supertonic when chatterbox-tts-api is primarily Python; supertonic is Swift; License: chatterbox-tts-api is AGPL-3.0, supertonic is MIT; 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 supertonic?
- If the application is multilingual but does not require on-device processing capabilities For teams preferring a different primary development language other than Swift or those lacking familiarity with ONNX implementation details
- 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 supertonic or chatterbox-tts-api more popular on GitHub?
- supertonic has more GitHub stars (13,543 vs 666). Stars measure visibility, not whether either tool fits your constraints.
- Are supertonic and chatterbox-tts-api open source?
- Yes - both are open-source projects on GitHub (supertonic: MIT, chatterbox-tts-api: AGPL-3.0).
- Where can I find alternatives to supertonic or chatterbox-tts-api?
- GraphCanon lists graph-backed alternatives at supertonic alternatives and chatterbox-tts-api alternatives (supertonic 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, supertonic or chatterbox-tts-api?
- supertonic: Very active. 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 supertonic and chatterbox-tts-api?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: supertonic trust report; chatterbox-tts-api trust report.