--- title: "supertonic vs chatterbox-tts-api" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/supertone-inc-supertonic-vs-travisvn-chatterbox-tts-api" tools: ["supertone-inc-supertonic", "travisvn-chatterbox-tts-api"] --- # supertonic vs chatterbox-tts-api *GraphCanon updated Aug 13, 2026* ## 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. [supertonic](https://huggingface.co/spaces/Supertone/supertonic-3) reports 14k GitHub stars, 1.4k forks, and 126 open issues, last pushed Jul 24, 2026. [chatterbox-tts-api](https://chatterboxtts.com) has 666 stars, 152 forks, and 16 open issues, last pushed Dec 23, 2025. Figures are from public GitHub metadata via [supertonic's repository](https://github.com/supertone-inc/supertonic) and [chatterbox-tts-api's repository](https://github.com/travisvn/chatterbox-tts-api). | | [supertonic](/tools/supertone-inc-supertonic.md) | [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) | | --- | --- | --- | | Tagline | Lightning-Fast On-Device Multilingual TTS via ONNX | Local OpenAI-compatible text-to-speech API using Chatterbox | | Stars | 13,543 | 666 | | Forks | 1,427 | 152 | | Open issues | 126 | 16 | | Language | Swift | Python | | Adopt for | Supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support. | 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 | - | - | | Runtime | - | - | | License | MIT | Chatterbox-TTS-API is distributed under the AGPL-3.0 license, ensuring any modifications or derivative works must be shared openly. | | Categories | Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [supertonic](/tools/supertone-inc-supertonic.md) | [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Slowing (36%) | | Days since push | 5d | 232d | | Open issues (now) | 126 | 16 | | Owner type | Organization | User | | Full report | [trust report](/tools/supertone-inc-supertonic/trust.md) | [trust report](/tools/travisvn-chatterbox-tts-api/trust.md) | ## Shared compatibility - **Python**: [supertonic](/tools/supertone-inc-supertonic.md) - Python runtime; [chatterbox-tts-api](/tools/travisvn-chatterbox-tts-api.md) - Python runtime ## Decision facts: supertonic - **Adopt for:** Supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support. ## Decision facts: chatterbox-tts-api - **Requirements:** Requires a local setup environment that supports CUDA for optimal performance; Docker can simplify deployment. - **Adopt for:** 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. - **License detail:** Chatterbox-TTS-API is distributed under the AGPL-3.0 license, ensuring any modifications or derivative works must be shared openly. ## Choose when ### 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 ### 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 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 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. ## 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](/tools/supertone-inc-supertonic/alternatives) and [chatterbox-tts-api alternatives](/tools/travisvn-chatterbox-tts-api/alternatives) ([supertonic markdown twin](/tools/supertone-inc-supertonic/alternatives.md), [chatterbox-tts-api markdown twin](/tools/travisvn-chatterbox-tts-api/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/supertone-inc-supertonic-vs-travisvn-chatterbox-tts-api.md) 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](/tools/supertone-inc-supertonic/trust); [chatterbox-tts-api trust report](/tools/travisvn-chatterbox-tts-api/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=supertone-inc-supertonic`](/api/graphcanon/graph?tool=supertone-inc-supertonic) - 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/_