--- title: "ChatTTS vs EmotiVoice" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/2noise-chattts-vs-netease-youdao-emotivoice" tools: ["2noise-chattts", "netease-youdao-emotivoice"] --- # ChatTTS vs EmotiVoice *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 EmotiVoice if emotiVoice is an emotion-driven text-to-speech engine that emphasizes voice diversity and prompt control, allowing users to generate speech with varied emotions and speaking styles. [ChatTTS](https://2noise.com) reports 40k GitHub stars, 4.3k forks, and 60 open issues, last pushed Apr 10, 2026. [EmotiVoice](https://github.com/netease-youdao/EmotiVoice) has 8.5k stars, 754 forks, and 137 open issues, last pushed Aug 13, 2024. Figures are from public GitHub metadata via [ChatTTS's repository](https://github.com/2noise/ChatTTS) and [EmotiVoice's repository](https://github.com/netease-youdao/EmotiVoice). | | [ChatTTS](/tools/2noise-chattts.md) | [EmotiVoice](/tools/netease-youdao-emotivoice.md) | | --- | --- | --- | | Tagline | A generative speech model for daily dialogue | A Multi-Voice and Prompt-Controlled TTS Engine | | Stars | 39,768 | 8,501 | | Forks | 4,257 | 754 | | Open issues | 60 | 137 | | Language | Python | Python | | Adopt for | ChatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English. | EmotiVoice is an emotion-driven text-to-speech engine that emphasizes voice diversity and prompt control, allowing users to generate speech with varied emotions and speaking styles. | | 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. | Apache-2.0 | | Categories | AI Agents, Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [ChatTTS](/tools/2noise-chattts.md) | [EmotiVoice](/tools/netease-youdao-emotivoice.md) | | --- | --- | --- | | Maintenance | Slowing (36%) | Dormant (18%) | | Days since push | 127d | 714d | | Open issues (now) | 60 | 137 | | 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/netease-youdao-emotivoice/trust.md) | ## Shared compatibility - **Python**: [ChatTTS](/tools/2noise-chattts.md) - Python runtime; [EmotiVoice](/tools/netease-youdao-emotivoice.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: EmotiVoice - **Adopt for:** EmotiVoice is an emotion-driven text-to-speech engine that emphasizes voice diversity and prompt control, allowing users to generate speech with varied emotions and speaking styles. ## Choose when ### Choose ChatTTS if… - License: ChatTTS is AGPL-3.0, EmotiVoice is Apache-2.0. - 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 EmotiVoice if… - License: EmotiVoice is Apache-2.0, ChatTTS is AGPL-3.0. - Tags unique to EmotiVoice: ai, deep-learning, emotion, multispeaker. - EmotiVoice ships Docker support for self-hosted deployment. - When you need a TTS solution capable of handling multiple speaker voices in a single project ## 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 EmotiVoice - For setups without access to an NVidia GPU, as EmotiVoice requires one for running its Docker image - When deploying applications that have strict latency requirements and cannot accommodate the startup time of a Docker container or the processing demands of GPU computations ## Common questions ### What is the difference between ChatTTS and EmotiVoice? ChatTTS: A generative speech model for daily dialogue. EmotiVoice: A Multi-Voice and Prompt-Controlled TTS Engine. See the comparison table for live GitHub stats and shared categories. ### When should I choose ChatTTS over EmotiVoice? Choose ChatTTS over EmotiVoice when License: ChatTTS is AGPL-3.0, EmotiVoice is Apache-2.0; 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 EmotiVoice over ChatTTS? Choose EmotiVoice over ChatTTS when License: EmotiVoice is Apache-2.0, ChatTTS is AGPL-3.0; Tags unique to EmotiVoice: ai, deep-learning, emotion, multispeaker; EmotiVoice ships Docker support for self-hosted deployment; When you need a TTS solution capable of handling multiple speaker voices in a single project. ### 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 EmotiVoice? For setups without access to an NVidia GPU, as EmotiVoice requires one for running its Docker image When deploying applications that have strict latency requirements and cannot accommodate the startup time of a Docker container or the processing demands of GPU computations ### Is ChatTTS or EmotiVoice more popular on GitHub? ChatTTS has more GitHub stars (39,768 vs 8,501). Stars measure visibility, not whether either tool fits your constraints. ### Are ChatTTS and EmotiVoice open source? Yes - both are open-source projects on GitHub (ChatTTS: AGPL-3.0, EmotiVoice: Apache-2.0). ### Where can I find alternatives to ChatTTS or EmotiVoice? GraphCanon lists graph-backed alternatives at [ChatTTS alternatives](/tools/2noise-chattts/alternatives) and [EmotiVoice alternatives](/tools/netease-youdao-emotivoice/alternatives) ([ChatTTS markdown twin](/tools/2noise-chattts/alternatives.md), [EmotiVoice markdown twin](/tools/netease-youdao-emotivoice/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-netease-youdao-emotivoice.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, ChatTTS or EmotiVoice? ChatTTS: Slowing. EmotiVoice: Dormant. 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 EmotiVoice? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [ChatTTS trust report](/tools/2noise-chattts/trust); [EmotiVoice trust report](/tools/netease-youdao-emotivoice/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/_