Comparison
ChatTTS vs espeak-ng
Verdict
Pick ChatTTS when chatTTS is primarily Python; espeak-ng is C; pick espeak-ng when espeak-ng is primarily C; ChatTTS is Python.
Markdown twin · ChatTTS alternatives · espeak-ng alternatives
GraphCanon updated today
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Trust & integrity
| Signal | ChatTTS | espeak-ng |
|---|---|---|
| Maintenance | Slowing (91d since push) As of 1d · github_public_v1 | Active (12d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Organization account As of 1d · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| Security (OSV) | No lockfile As of 1d · none | No lockfile As of today · none |
Tagline
- ChatTTS
- A generative speech model for daily dialogue
- espeak-ng
- eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.
Stars
- ChatTTS
- 40k
- espeak-ng
- 6.6k
Forks
- ChatTTS
- 4.2k
- espeak-ng
- 1.3k
Open issues
- ChatTTS
- 63
- espeak-ng
- 617
Language
- ChatTTS
- Python
- espeak-ng
- C
Adopt for
- ChatTTS
- ChatTTS is a Python-based repository for generating speech tailored to everyday conversations in both Chinese and English.
- espeak-ng
- -
Persona
- ChatTTS
- -
- espeak-ng
- -
Runtime
- ChatTTS
- -
- espeak-ng
- -
License
- ChatTTS
- Licensed under AGPL-3.0, which allows for free use, distribution, and modification as long as these rights are maintained in derivative works.
- espeak-ng
- GPL-3.0
Last pushed
- ChatTTS
- Apr 10, 2026
- espeak-ng
- Jun 29, 2026
Categories
- ChatTTS
- AI Agents, Speech & Audio
- espeak-ng
- Speech & Audio
Trust and health
Maintenance
- ChatTTS
- Slowing (36%)
- espeak-ng
- Active (82%)
Days since push
- ChatTTS
- 91d
- espeak-ng
- 12d
Open issues (now)
- ChatTTS
- 63
- espeak-ng
- 617
Full report
- ChatTTS
- Trust report
- espeak-ng
- Trust report
Choose ChatTTS if…
- ChatTTS is primarily Python; espeak-ng is C.
- License: ChatTTS is AGPL-3.0, espeak-ng 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 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.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (2noise/ChatTTS) · observed Jul 11, 2026
- GitHub forks (2noise/ChatTTS) · observed Jul 11, 2026
- Last push (2noise/ChatTTS) · observed Apr 10, 2026
- License file (AGPL-3.0) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (espeak-ng/espeak-ng) · observed Jul 11, 2026
- GitHub forks (espeak-ng/espeak-ng) · observed Jul 11, 2026
- Last push (espeak-ng/espeak-ng) · observed Jun 29, 2026
- License file (GPL-3.0) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: ChatTTS 40k · espeak-ng 6.6k (synced Jul 11, 2026).
Common questions
- What is the difference between ChatTTS and espeak-ng?
- ChatTTS: A generative speech model for daily dialogue. espeak-ng: eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.. See the comparison table for live GitHub stats and shared categories.
- When should I choose ChatTTS over espeak-ng?
- Choose ChatTTS over espeak-ng when ChatTTS is primarily Python; espeak-ng is C; License: ChatTTS is AGPL-3.0, espeak-ng 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 espeak-ng over ChatTTS?
- Choose espeak-ng over ChatTTS when espeak-ng is primarily C; ChatTTS is Python; License: espeak-ng is GPL-3.0, ChatTTS is AGPL-3.0; Tags unique to espeak-ng: android, c++, espeak, espeak-ng.
- 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.
- Is ChatTTS or espeak-ng more popular on GitHub?
- ChatTTS has more GitHub stars (39,593 vs 6,634). Stars measure visibility, not whether either tool fits your constraints.
- Are ChatTTS and espeak-ng open source?
- Yes - both are open-source projects on GitHub (ChatTTS: AGPL-3.0, espeak-ng: GPL-3.0).
- Where can I find alternatives to ChatTTS or espeak-ng?
- GraphCanon lists graph-backed alternatives at ChatTTS alternatives and espeak-ng alternatives (ChatTTS markdown twin, espeak-ng markdown twin), 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 mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, ChatTTS or espeak-ng?
- ChatTTS: Slowing. espeak-ng: 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 espeak-ng?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: ChatTTS trust report; espeak-ng trust report.