Comparison
espeak-ng vs openai_tts
Verdict
Pick espeak-ng if eSpeak NG: Free text-to-speech engine with over a hundred languages and accents in C under GPL-3.0; pick openai_tts if a Python-based Home Assistant TTS component that leverages the OpenAI speech engine with extras like chimes and normalization.
Markdown twin · espeak-ng alternatives · openai_tts alternatives
GraphCanon updated 1w
vs
Trust & integrity
| Signal | espeak-ng | openai_tts |
|---|---|---|
| Maintenance | Very active (1d since push) As of 3w · github_public_v1 | Slowing (99d since push) As of 1w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 3w · github_public_v1 | Not a fork · Personal account As of 1w · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- espeak-ng
- Open source speech synthesizer supporting more than hundred languages and accents
- openai_tts
- Custom TTS component for Home Assistant with OpenAI speech engine integration
Stars
- espeak-ng
- 6.7k
- openai_tts
- 205
Forks
- espeak-ng
- 1.3k
- openai_tts
- 45
Open issues
- espeak-ng
- 594
- openai_tts
- 9
Language
- espeak-ng
- C
- openai_tts
- Python
Adopt for
- espeak-ng
- eSpeak NG: Free text-to-speech engine with over a hundred languages and accents in C under GPL-3.0
- openai_tts
- A Python-based Home Assistant TTS component that leverages the OpenAI speech engine with extras like chimes and normalization
Persona
- espeak-ng
- -
- openai_tts
- -
Runtime
- espeak-ng
- -
- openai_tts
- -
License
- espeak-ng
- GPL-3.0
- openai_tts
- GPL-3.0
Last pushed
- espeak-ng
- Jul 27, 2026
- openai_tts
- May 5, 2026
Categories
- espeak-ng
- Speech & Audio
- openai_tts
- Speech & Audio
Trust and health
Maintenance
- espeak-ng
- Very active (96%)
- openai_tts
- Slowing (36%)
Days since push
- espeak-ng
- 1d
- openai_tts
- 99d
Open issues (now)
- espeak-ng
- 594
- openai_tts
- 9
Owner type
- espeak-ng
- Organization
- openai_tts
- User
Full report
- espeak-ng
- Trust report
- openai_tts
- Trust report
Choose espeak-ng if…
- espeak-ng is primarily C; openai_tts is Python.
- Tags unique to espeak-ng: android, espeak, espeak-ng, speech-synthesis.
- When multilingual support across over a hundred languages is required.
When NOT to use espeak-ng
- Avoid if proprietary software development prohibits use of GPL-3.0 licensed tools.
- Not ideal if fine-grain control and quality over diverse accents are more important than extensive language coverage.
Choose openai_tts if…
- openai_tts is primarily Python; espeak-ng is C.
- Tags unique to openai_tts: ai, chime, ha, hacs.
- When you require integration with the Home Assistant ecosystem that includes high-quality text-to-speech from OpenAI
When NOT to use openai_tts
- Avoid if your deployment environment does not support Python, essential for this TTS component's operation
- Not fit when looking for pre-built integrations without Home Assistant, since it specifically caters to the Home Assistant platform
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (espeak-ng/espeak-ng) · observed Jul 29, 2026
- GitHub forks (espeak-ng/espeak-ng) · observed Jul 29, 2026
- Last push (espeak-ng/espeak-ng) · observed Jul 27, 2026
- License file (GPL-3.0) · observed Jul 29, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (sfortis/openai_tts) · observed Aug 13, 2026
- GitHub forks (sfortis/openai_tts) · observed Aug 13, 2026
- Last push (sfortis/openai_tts) · observed May 5, 2026
- License file (GPL-3.0) · observed Aug 13, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
GitHub stars on cards: espeak-ng 6.7k · openai_tts 205 (synced Jul 29, 2026).
Common questions
- What is the difference between espeak-ng and openai_tts?
- espeak-ng: Open source speech synthesizer supporting more than hundred languages and accents. openai_tts: Custom TTS component for Home Assistant with OpenAI speech engine integration. See the comparison table for live GitHub stats and shared categories.
- When should I choose espeak-ng over openai_tts?
- Choose espeak-ng over openai_tts when espeak-ng is primarily C; openai_tts is Python; Tags unique to espeak-ng: android, espeak, espeak-ng, speech-synthesis; When multilingual support across over a hundred languages is required.
- When should I choose openai_tts over espeak-ng?
- Choose openai_tts over espeak-ng when openai_tts is primarily Python; espeak-ng is C; Tags unique to openai_tts: ai, chime, ha, hacs; When you require integration with the Home Assistant ecosystem that includes high-quality text-to-speech from OpenAI.
- When should I avoid espeak-ng?
- Avoid if proprietary software development prohibits use of GPL-3.0 licensed tools. Not ideal if fine-grain control and quality over diverse accents are more important than extensive language coverage.
- When should I avoid openai_tts?
- Avoid if your deployment environment does not support Python, essential for this TTS component's operation Not fit when looking for pre-built integrations without Home Assistant, since it specifically caters to the Home Assistant platform
- Is espeak-ng or openai_tts more popular on GitHub?
- espeak-ng has more GitHub stars (6,688 vs 205). Stars measure visibility, not whether either tool fits your constraints.
- Are espeak-ng and openai_tts open source?
- Yes - both are open-source projects on GitHub (espeak-ng: GPL-3.0, openai_tts: GPL-3.0).
- Where can I find alternatives to espeak-ng or openai_tts?
- GraphCanon lists graph-backed alternatives at espeak-ng alternatives and openai_tts alternatives (espeak-ng markdown twin, openai_tts 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, espeak-ng or openai_tts?
- espeak-ng: Very active. openai_tts: 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 espeak-ng and openai_tts?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: espeak-ng trust report; openai_tts trust report.