--- title: "ChatTTS vs kaldi" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/2noise-chattts-vs-kaldi-asr-kaldi" tools: ["2noise-chattts", "kaldi-asr-kaldi"] --- # ChatTTS vs kaldi *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 kaldi if kaldi stands out among speech recognition toolkits with its comprehensive C++ libraries and strong community support for contributors. [ChatTTS](https://2noise.com) reports 40k GitHub stars, 4.3k forks, and 60 open issues, last pushed Apr 10, 2026. [kaldi](http://kaldi-asr.org) has 15k stars, 5.4k forks, and 260 open issues, last pushed Sep 22, 2025. Figures are from public GitHub metadata via [ChatTTS's repository](https://github.com/2noise/ChatTTS) and [kaldi's repository](https://github.com/kaldi-asr/kaldi). | | [ChatTTS](/tools/2noise-chattts.md) | [kaldi](/tools/kaldi-asr-kaldi.md) | | --- | --- | --- | | Tagline | A generative speech model for daily dialogue | Kaldi Speech Recognition Toolkit | | Stars | 39,768 | 15,442 | | Forks | 4,257 | 5,355 | | Open issues | 60 | 260 | | Language | Python | Shell | | Adopt for | ChatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English. | Kaldi stands out among speech recognition toolkits with its comprehensive C++ libraries and strong community support for contributors. | | 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. | Other | | Categories | AI Agents, Speech & Audio | Speech & Audio | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [ChatTTS](/tools/2noise-chattts.md) | [kaldi](/tools/kaldi-asr-kaldi.md) | | --- | --- | --- | | Days since push | 127d | 310d | | Open issues (now) | 60 | 260 | | Stars delta | +140 (30d) | Unknown | | Open issues delta | -1 (30d) | Unknown | | Full report | [trust report](/tools/2noise-chattts/trust.md) | [trust report](/tools/kaldi-asr-kaldi/trust.md) | ## 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: kaldi - **Adopt for:** Kaldi stands out among speech recognition toolkits with its comprehensive C++ libraries and strong community support for contributors. ## Choose when ### Choose ChatTTS if… - ChatTTS is primarily Python; kaldi is Shell. - License: ChatTTS is AGPL-3.0, kaldi is Other. - 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 kaldi if… - kaldi is primarily Shell; ChatTTS is Python. - License: kaldi is Other, ChatTTS is AGPL-3.0. - Tags unique to kaldi: c-plus-plus, cuda, speaker-id, speaker-verification. - For developers preferring a deep customization of speech recognition algorithms in C++ ## 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 kaldi - If you require extensive pre-built support and documentation for non-UNIX systems like Windows outside Cygwin environment - For users seeking a purely Python-based ecosystem for developing speech recognition applications without the need to compile C++ code ## Common questions ### What is the difference between ChatTTS and kaldi? ChatTTS: A generative speech model for daily dialogue. kaldi: Kaldi Speech Recognition Toolkit. See the comparison table for live GitHub stats and shared categories. ### When should I choose ChatTTS over kaldi? Choose ChatTTS over kaldi when ChatTTS is primarily Python; kaldi is Shell; License: ChatTTS is AGPL-3.0, kaldi is Other; 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 kaldi over ChatTTS? Choose kaldi over ChatTTS when kaldi is primarily Shell; ChatTTS is Python; License: kaldi is Other, ChatTTS is AGPL-3.0; Tags unique to kaldi: c-plus-plus, cuda, speaker-id, speaker-verification; For developers preferring a deep customization of speech recognition algorithms in C++. ### 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 kaldi? If you require extensive pre-built support and documentation for non-UNIX systems like Windows outside Cygwin environment For users seeking a purely Python-based ecosystem for developing speech recognition applications without the need to compile C++ code ### Is ChatTTS or kaldi more popular on GitHub? ChatTTS has more GitHub stars (39,768 vs 15,442). Stars measure visibility, not whether either tool fits your constraints. ### Are ChatTTS and kaldi open source? Yes - both are open-source projects on GitHub (ChatTTS: AGPL-3.0, kaldi: Other). ### Where can I find alternatives to ChatTTS or kaldi? GraphCanon lists graph-backed alternatives at [ChatTTS alternatives](/tools/2noise-chattts/alternatives) and [kaldi alternatives](/tools/kaldi-asr-kaldi/alternatives) ([ChatTTS markdown twin](/tools/2noise-chattts/alternatives.md), [kaldi markdown twin](/tools/kaldi-asr-kaldi/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-kaldi-asr-kaldi.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, ChatTTS or kaldi? ChatTTS: Slowing. kaldi: 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 ChatTTS and kaldi? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [ChatTTS trust report](/tools/2noise-chattts/trust); [kaldi trust report](/tools/kaldi-asr-kaldi/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/_