Comparison
dia vs dia2
Verdict
Pick dia when tags unique to dia: dialogue-generation, tts; pick dia2 when tags unique to dia2: open-weight.
Markdown twin · dia alternatives · dia2 alternatives
GraphCanon updated 3w
Trust & integrity
| Signal | dia | dia2 |
|---|---|---|
| Maintenance | Slowing (251d 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
- dia
- A TTS model for generating ultra-realistic dialogue
- dia2
- TTS model capable of streaming conversational audio in real-time.
Stars
- dia
- 19k
- dia2
- 1.2k
Forks
- dia
- 1.7k
- dia2
- 99
Open issues
- dia
- 91
- dia2
- 5
Language
- dia
- Python
- dia2
- Python
Adopt for
- dia
- Dia is an open-weight text-to-dialogue model providing full control over scripts and voices, ideal for generating ultra-realistic dialogue.
- dia2
- -
Persona
- dia
- -
- dia2
- -
Runtime
- dia
- -
- dia2
- -
License
- dia
- Apache-2.0
- dia2
- Apache-2.0
Last pushed
- dia
- Nov 19, 2025
- dia2
- Nov 29, 2025
Categories
- dia
- Speech & Audio
- dia2
- Speech & Audio
Trust and health
Days since push
- dia
- 251d
- dia2
- 243d
Open issues (now)
- dia
- 91
- dia2
- 5
Full report
- dia
- Trust report
- dia2
- Trust report
Choose dia if…
- Tags unique to dia: dialogue-generation, tts.
- When you require precise control over voice and script in the creation of highly realistic dialogues
- More GitHub stars (19k vs 1.2k) - visibility, not fit.
When NOT to use dia
- If your setup lacks a GPU, as Dia has not yet added CPU support
- In scenarios where immediate real-time performance is critical since the first run could be longer due to additional codec downloads
Choose dia2 if…
- Tags unique to dia2: open-weight.
- When you need real-time streaming capabilities for text-to-speech applications.
- More recently updated (last pushed Nov 29, 2025).
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 (nari-labs/dia) · observed Jul 29, 2026
- GitHub forks (nari-labs/dia) · observed Jul 29, 2026
- Last push (nari-labs/dia) · observed Nov 19, 2025
- License file (Apache-2.0) · observed Jul 29, 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: dia 19k · dia2 1.2k (synced Jul 29, 2026).
Common questions
- What is the difference between dia and dia2?
- dia: A TTS model for generating ultra-realistic dialogue. 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 dia over dia2?
- Choose dia over dia2 when Tags unique to dia: dialogue-generation, tts; When you require precise control over voice and script in the creation of highly realistic dialogues; More GitHub stars (19k vs 1.2k) - visibility, not fit.
- When should I choose dia2 over dia?
- Choose dia2 over dia when Tags unique to dia2: open-weight; When you need real-time streaming capabilities for text-to-speech applications; More recently updated (last pushed Nov 29, 2025).
- When should I avoid dia?
- If your setup lacks a GPU, as Dia has not yet added CPU support In scenarios where immediate real-time performance is critical since the first run could be longer due to additional codec downloads
- 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 dia or dia2 more popular on GitHub?
- dia has more GitHub stars (19,361 vs 1,160). Stars measure visibility, not whether either tool fits your constraints.
- Are dia and dia2 open source?
- Yes - both are open-source projects on GitHub (dia: Apache-2.0, dia2: Apache-2.0).
- Where can I find alternatives to dia or dia2?
- GraphCanon lists graph-backed alternatives at dia alternatives and dia2 alternatives (dia 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, dia or dia2?
- dia: 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 dia and dia2?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: dia trust report; dia2 trust report.