Comparison
vosk-api vs dia2
Verdict
Pick vosk-api when vosk-api is primarily Jupyter Notebook; dia2 is Python; pick dia2 when dia2 is primarily Python; vosk-api is Jupyter Notebook.
Markdown twin · vosk-api alternatives · dia2 alternatives
GraphCanon updated 3w
Trust & integrity
| Signal | vosk-api | dia2 |
|---|---|---|
| Maintenance | Active (27d since push) As of 3w · github_public_v1 | Slowing (243d since push) As of 3w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 3w · github_public_v1 | Not a fork · Organization account As of 3w · 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
- vosk-api
- Offline speech recognition API
- dia2
- TTS model capable of streaming conversational audio in real-time.
Stars
- vosk-api
- 15k
- dia2
- 1.2k
Forks
- vosk-api
- 1.7k
- dia2
- 99
Open issues
- vosk-api
- 600
- dia2
- 5
Language
- vosk-api
- Jupyter Notebook
- dia2
- Python
Adopt for
- vosk-api
- Vosk-api is an offline speech recognition toolkit enabling continuous large-vocabulary transcription for over 20 languages, fitting onto small devices while offering speaker identification.
- dia2
- -
Persona
- vosk-api
- -
- dia2
- -
Runtime
- vosk-api
- -
- dia2
- -
License
- vosk-api
- Apache-2.0
- dia2
- Apache-2.0
Last pushed
- vosk-api
- Jul 2, 2026
- dia2
- Nov 29, 2025
Categories
- vosk-api
- Speech & Audio
- dia2
- Speech & Audio
Trust and health
Maintenance
- vosk-api
- Active (82%)
- dia2
- Slowing (36%)
Days since push
- vosk-api
- 27d
- dia2
- 243d
Open issues (now)
- vosk-api
- 600
- dia2
- 5
Full report
- vosk-api
- Trust report
- dia2
- Trust report
Choose vosk-api if…
- vosk-api is primarily Jupyter Notebook; dia2 is Python.
- Tags unique to vosk-api: android, asr, deep-learning, deeplearning.
- When offline operation is required as Vosk operates without internet connection
When NOT to use vosk-api
- When the project requires real-time transcription with high accuracy, possibly surpassing Vosk's performance limitations
- For projects limited to languages not currently supported by Vosk's model lineup
- If the application necessitates a cloud solution or benefits from regular over-the-air updates and improvements
Choose dia2 if…
- dia2 is primarily Python; vosk-api is Jupyter Notebook.
- Tags unique to dia2: open-weight, text-to-speech.
- When you need real-time streaming capabilities for text-to-speech applications.
When NOT to use dia2
- For projects aimed at batch processing or non-realtime TTS applications where instantaneous audio output isn't required.
- If you are looking for an open-source model that does not include specific proprietary components like the Kyutai Mimi codec.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (alphacep/vosk-api) · observed Jul 30, 2026
- GitHub forks (alphacep/vosk-api) · observed Jul 30, 2026
- Last push (alphacep/vosk-api) · observed Jul 2, 2026
- License file (Apache-2.0) · observed Jul 30, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (nari-labs/dia2) · observed Jul 30, 2026
- GitHub forks (nari-labs/dia2) · observed Jul 30, 2026
- Last push (nari-labs/dia2) · observed Nov 29, 2025
- License file (Apache-2.0) · observed Jul 30, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: vosk-api 15k · dia2 1.2k (synced Jul 30, 2026).
Common questions
- What is the difference between vosk-api and dia2?
- vosk-api: Offline speech recognition API. dia2: TTS model capable of streaming conversational audio in real-time.. See the comparison table for live GitHub stats and shared categories.
- When should I choose vosk-api over dia2?
- Choose vosk-api over dia2 when vosk-api is primarily Jupyter Notebook; dia2 is Python; Tags unique to vosk-api: android, asr, deep-learning, deeplearning; When offline operation is required as Vosk operates without internet connection.
- When should I choose dia2 over vosk-api?
- Choose dia2 over vosk-api when dia2 is primarily Python; vosk-api is Jupyter Notebook; Tags unique to dia2: open-weight, text-to-speech; When you need real-time streaming capabilities for text-to-speech applications.
- When should I avoid vosk-api?
- When the project requires real-time transcription with high accuracy, possibly surpassing Vosk's performance limitations For projects limited to languages not currently supported by Vosk's model lineup If the application necessitates a cloud solution or benefits from regular over-the-air updates and improvements
- When should I avoid dia2?
- For projects aimed at batch processing or non-realtime TTS applications where instantaneous audio output isn't required. If you are looking for an open-source model that does not include specific proprietary components like the Kyutai Mimi codec.
- Is vosk-api or dia2 more popular on GitHub?
- vosk-api has more GitHub stars (15,013 vs 1,160). Stars measure visibility, not whether either tool fits your constraints.
- Are vosk-api and dia2 open source?
- Yes - both are open-source projects on GitHub (vosk-api: Apache-2.0, dia2: Apache-2.0).
- Where can I find alternatives to vosk-api or dia2?
- GraphCanon lists graph-backed alternatives at vosk-api alternatives and dia2 alternatives (vosk-api markdown twin, dia2 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, vosk-api or dia2?
- vosk-api: Active. dia2: 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 vosk-api and dia2?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: vosk-api trust report; dia2 trust report.