--- title: "ChatTTS vs voice-pro" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/2noise-chattts-vs-abus-aikorea-voice-pro" tools: ["2noise-chattts", "abus-aikorea-voice-pro"] --- # ChatTTS vs voice-pro *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 voice-pro if voice-Pro utilizes Gradio WebUI to offer TTS engines, zero-shot voice cloning, audio processing tools, with YouTube downloading and vocal isolation features. [ChatTTS](https://2noise.com) reports 40k GitHub stars, 4.3k forks, and 60 open issues, last pushed Apr 10, 2026. [voice-pro](https://www.wctokyoseoul.com) has 11k stars, 1.7k forks, and 56 open issues, last pushed Jul 13, 2026. Figures are from public GitHub metadata via [ChatTTS's repository](https://github.com/2noise/ChatTTS) and [voice-pro's repository](https://github.com/abus-aikorea/voice-pro). | | [ChatTTS](/tools/2noise-chattts.md) | [voice-pro](/tools/abus-aikorea-voice-pro.md) | | --- | --- | --- | | Tagline | A generative speech model for daily dialogue | Gradio WebUI for TTS and voice cloning with audio processing capabilities | | Stars | 39,768 | 11,348 | | Forks | 4,257 | 1,663 | | Open issues | 60 | 56 | | Language | Python | Python | | Adopt for | ChatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English. | Voice-Pro utilizes Gradio WebUI to offer TTS engines, zero-shot voice cloning, audio processing tools, with YouTube downloading and vocal isolation features. | | 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. | GPL-3.0 | | Categories | AI Agents, Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [ChatTTS](/tools/2noise-chattts.md) | [voice-pro](/tools/abus-aikorea-voice-pro.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Active (82%) | | Days since push | 127d | 16d | | Open issues (now) | 60 | 56 | | Stars delta | +140 (30d) | Unknown | | Open issues delta | -1 (30d) | Unknown | | Owner type | Organization | User | | Full report | [trust report](/tools/2noise-chattts/trust.md) | [trust report](/tools/abus-aikorea-voice-pro/trust.md) | ## Shared compatibility - **Python**: [ChatTTS](/tools/2noise-chattts.md) - Python runtime; [voice-pro](/tools/abus-aikorea-voice-pro.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: voice-pro - **Adopt for:** Voice-Pro utilizes Gradio WebUI to offer TTS engines, zero-shot voice cloning, audio processing tools, with YouTube downloading and vocal isolation features. ## Choose when ### Choose ChatTTS if… - License: ChatTTS is AGPL-3.0, voice-pro is GPL-3.0. - 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. ### Choose voice-pro if… - License: voice-pro is GPL-3.0, ChatTTS is AGPL-3.0. - Tags unique to voice-pro: audiobook, faster-whisper, gradio, karaoke. - For multilingual audiobook creation with integrated translation capabilities ## 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 voice-pro - For users prioritizing a fully offline experience due to the need for internet access during model download and use - If only basic speech synthesis without advanced voice cloning or audio processing is required, as Voice-Pro supports more complex workflows ## Common questions ### What is the difference between ChatTTS and voice-pro? ChatTTS: A generative speech model for daily dialogue. voice-pro: Gradio WebUI for TTS and voice cloning with audio processing capabilities. See the comparison table for live GitHub stats and shared categories. ### When should I choose ChatTTS over voice-pro? Choose ChatTTS over voice-pro when License: ChatTTS is AGPL-3.0, voice-pro is GPL-3.0; 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 voice-pro over ChatTTS? Choose voice-pro over ChatTTS when License: voice-pro is GPL-3.0, ChatTTS is AGPL-3.0; Tags unique to voice-pro: audiobook, faster-whisper, gradio, karaoke; For multilingual audiobook creation with integrated translation capabilities. ### 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 voice-pro? For users prioritizing a fully offline experience due to the need for internet access during model download and use If only basic speech synthesis without advanced voice cloning or audio processing is required, as Voice-Pro supports more complex workflows ### Is ChatTTS or voice-pro more popular on GitHub? ChatTTS has more GitHub stars (39,768 vs 11,348). Stars measure visibility, not whether either tool fits your constraints. ### Are ChatTTS and voice-pro open source? Yes - both are open-source projects on GitHub (ChatTTS: AGPL-3.0, voice-pro: GPL-3.0). ### Where can I find alternatives to ChatTTS or voice-pro? GraphCanon lists graph-backed alternatives at [ChatTTS alternatives](/tools/2noise-chattts/alternatives) and [voice-pro alternatives](/tools/abus-aikorea-voice-pro/alternatives) ([ChatTTS markdown twin](/tools/2noise-chattts/alternatives.md), [voice-pro markdown twin](/tools/abus-aikorea-voice-pro/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-abus-aikorea-voice-pro.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, ChatTTS or voice-pro? ChatTTS: Slowing. voice-pro: 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 voice-pro? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [ChatTTS trust report](/tools/2noise-chattts/trust); [voice-pro trust report](/tools/abus-aikorea-voice-pro/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/_