--- title: "ChatTTS vs supertonic" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/2noise-chattts-vs-supertone-inc-supertonic" tools: ["2noise-chattts", "supertone-inc-supertonic"] --- # ChatTTS vs supertonic *GraphCanon updated Aug 16, 2026* ## Verdict Pick ChatTTS if chatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English; pick supertonic if supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support. [ChatTTS](https://2noise.com) reports 40k GitHub stars, 4.3k forks, and 60 open issues, last pushed Apr 10, 2026. [supertonic](https://huggingface.co/spaces/Supertone/supertonic-3) has 14k stars, 1.4k forks, and 126 open issues, last pushed Jul 24, 2026. Figures are from public GitHub metadata via [ChatTTS's repository](https://github.com/2noise/ChatTTS) and [supertonic's repository](https://github.com/supertone-inc/supertonic). | | [ChatTTS](/tools/2noise-chattts.md) | [supertonic](/tools/supertone-inc-supertonic.md) | | --- | --- | --- | | Tagline | A generative speech model for daily dialogue | Lightning-Fast On-Device Multilingual TTS via ONNX | | Stars | 39,768 | 13,543 | | Forks | 4,257 | 1,427 | | Open issues | 60 | 126 | | Language | Python | Swift | | Adopt for | ChatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English. | Supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support. | | Persona | - | - | | Runtime | - | - | | License | Licensed under AGPL-3.0, which allows for free use, distribution, and modification as long as these rights are maintained in derivative works. | MIT | | Categories | AI Agents, Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [ChatTTS](/tools/2noise-chattts.md) | [supertonic](/tools/supertone-inc-supertonic.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Very active (96%) | | Days since push | 127d | 5d | | Open issues (now) | 60 | 126 | | Stars delta | +140 (30d) | Unknown | | Open issues delta | -1 (30d) | Unknown | | Full report | [trust report](/tools/2noise-chattts/trust.md) | [trust report](/tools/supertone-inc-supertonic/trust.md) | ## Shared compatibility - **Python**: [ChatTTS](/tools/2noise-chattts.md) - Python runtime; [supertonic](/tools/supertone-inc-supertonic.md) - Python runtime ## Decision facts: ChatTTS - **Hosting:** unknown - **Requirements:** Python-based implementation means that familiarity with Python is necessary for effective use. - **Adopt for:** ChatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English. - **License detail:** Licensed under AGPL-3.0, which allows for free use, distribution, and modification as long as these rights are maintained in derivative works. ## Decision facts: supertonic - **Adopt for:** Supertonic provides fast multilingual TTS on-device using ONNX runtime, native to Swift with wide language support. ## Choose when ### Choose ChatTTS if… - ChatTTS is primarily Python; supertonic is Swift. - License: ChatTTS is AGPL-3.0, supertonic is MIT. - 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. ### Choose supertonic if… - supertonic is primarily Swift; ChatTTS is Python. - License: supertonic is MIT, ChatTTS 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 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 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 ## Common questions ### What is the difference between ChatTTS and supertonic? ChatTTS: A generative speech model for daily dialogue. supertonic: Lightning-Fast On-Device Multilingual TTS via ONNX. See the comparison table for live GitHub stats and shared categories. ### When should I choose ChatTTS over supertonic? Choose ChatTTS over supertonic when ChatTTS is primarily Python; supertonic is Swift; License: ChatTTS is AGPL-3.0, supertonic is MIT; 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 supertonic over ChatTTS? Choose supertonic over ChatTTS when supertonic is primarily Swift; ChatTTS is Python; License: supertonic is MIT, ChatTTS 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 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 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 ### Is ChatTTS or supertonic more popular on GitHub? ChatTTS has more GitHub stars (39,768 vs 13,543). Stars measure visibility, not whether either tool fits your constraints. ### Are ChatTTS and supertonic open source? Yes - both are open-source projects on GitHub (ChatTTS: AGPL-3.0, supertonic: MIT). ### Where can I find alternatives to ChatTTS or supertonic? GraphCanon lists graph-backed alternatives at [ChatTTS alternatives](/tools/2noise-chattts/alternatives) and [supertonic alternatives](/tools/supertone-inc-supertonic/alternatives) ([ChatTTS markdown twin](/tools/2noise-chattts/alternatives.md), [supertonic markdown twin](/tools/supertone-inc-supertonic/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/2noise-chattts-vs-supertone-inc-supertonic.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, ChatTTS or supertonic? ChatTTS: Slowing. supertonic: Very 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 supertonic? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [ChatTTS trust report](/tools/2noise-chattts/trust); [supertonic trust report](/tools/supertone-inc-supertonic/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=2noise-chattts`](/api/graphcanon/graph?tool=2noise-chattts) - 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/_