Comparison
stt vs dia2
Verdict
Pick stt when license: stt is GPL-3.0, dia2 is Apache-2.0; pick dia2 when license: dia2 is Apache-2.0, stt is GPL-3.0.
Markdown twin · stt alternatives · dia2 alternatives
GraphCanon updated Sep 20, 2026
12views this month
Trust & integrity
| Signal | stt | dia2 |
|---|---|---|
| Maintenance | Slowing (240d since push) As of Sep 20, 2026 · github_public_v1 | Slowing (295d since push) As of Sep 20, 2026 · github_public_v1 |
| Provenance | Not a fork · Personal account As of Sep 20, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 |
| OSV dependency advisories | Published findings As of Jul 11, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 11, 2026 · 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
- stt
- A local offline speech-to-text tool for video and audio files.
- dia2
- TTS model capable of streaming conversational audio in real-time.
Stars
- stt
- 4.8k
- dia2
- 1.2k
Forks
- stt
- 503
- dia2
- 102
Open issues
- stt
- 100
- dia2
- 5
Language
- stt
- Python
- dia2
- Python
Adopt for
- stt
- stt is a Python-based local offline speech-to-text tool that uses fast-whipser for converting audio from video and audio files into text, including JSON, SRT subtitles, or plain text formats.
- dia2
- -
Persona
- stt
- -
- dia2
- -
Runtime
- stt
- -
- dia2
- -
License
- stt
- GPL-3.0
- dia2
- Apache-2.0
Last pushed
- stt
- Jan 22, 2026
- dia2
- Nov 29, 2025
Categories
- stt
- Speech & Audio
- dia2
- Speech & Audio
Trust and health
Days since push
- stt
- 240d
- dia2
- 295d
Open issues (now)
- stt
- 100
- dia2
- 5
Stars delta
- stt
- +83 (30d)
- dia2
- +20 (30d)
Owner type
- stt
- User
- dia2
- Organization
OSV dependency advisories
- stt
- Published findings
- dia2
- No lockfile (source not queried)
Full report
- stt
- Trust report
- dia2
- Trust report
Choose stt if…
- License: stt is GPL-3.0, dia2 is Apache-2.0.
- Tags unique to stt: audio-processing, fast-whisper, local-processing, offline.
- Use stt if you require an offline, locally-run solution where internet dependence is not acceptable.
When NOT to use stt
- Avoid using stt if your application relies on continuous updates and service improvements that are only available via web services.
- Do not use stt in environments where CUDA acceleration cannot be supported, as it will limit processing speed without the GPU acceleration advantage.
Choose dia2 if…
- License: dia2 is Apache-2.0, stt is GPL-3.0.
- 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 (jianchang512/stt) · observed Sep 20, 2026
- GitHub forks (jianchang512/stt) · observed Sep 20, 2026
- Last push (jianchang512/stt) · observed Jan 22, 2026
- License file (GPL-3.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (nari-labs/dia2) · observed Sep 20, 2026
- GitHub forks (nari-labs/dia2) · observed Sep 20, 2026
- Last push (nari-labs/dia2) · observed Nov 29, 2025
- License file (Apache-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: stt 4.8k · dia2 1.2k (synced Sep 20, 2026).
Common questions
- What is the difference between stt and dia2?
- stt: A local offline speech-to-text tool for video and audio files.. 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 stt over dia2?
- Choose stt over dia2 when License: stt is GPL-3.0, dia2 is Apache-2.0; Tags unique to stt: audio-processing, fast-whisper, local-processing, offline; Use stt if you require an offline, locally-run solution where internet dependence is not acceptable.
- When should I choose dia2 over stt?
- Choose dia2 over stt when License: dia2 is Apache-2.0, stt is GPL-3.0; 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 stt?
- Avoid using stt if your application relies on continuous updates and service improvements that are only available via web services. Do not use stt in environments where CUDA acceleration cannot be supported, as it will limit processing speed without the GPU acceleration advantage.
- 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 stt or dia2 more popular on GitHub?
- stt has more GitHub stars (4,795 vs 1,180). Stars measure visibility, not whether either tool fits your constraints.
- Are stt and dia2 open source?
- Yes - both are open-source projects on GitHub (stt: GPL-3.0, dia2: Apache-2.0).
- Where can I find alternatives to stt or dia2?
- GraphCanon lists graph-backed alternatives at stt alternatives and dia2 alternatives (stt 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, stt or dia2?
- stt: Slowing. 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 stt and dia2?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: stt trust report; dia2 trust report.