Nari Labs Dia2 (1B / 2B)
Model idnari-labs/Dia2-2B
PricePrice not published
Checked29 September 2026
Where it stands
77newer speech and audio models since its release
- NVIDIA Nemotron 3.5 Transcribe (30B-A4B)28 Oct 2026
- Hy-SimulMT-30B-A3B22 Oct 2026
- Eleven Realtime v1 Max / Mini20 Oct 2026
- Voxtral Mini Transcribe 3 (+ Mini Transcribe Realtime 3)20 Oct 2026
- Voxtral Small Transcribe 320 Oct 2026
The 5 newest are listed. All speech and audio models
- Weights
- Weights are public under a permissive licence (Apache-2.0).
How to call it
2 ways to use Nari Labs Dia2 (1B / 2B), with the model id each provider expects.
| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| Hugging Face | nari-labs/Dia2-2B |
huggingface.co | |
| GitHub | github.com |
Pricing
Price not published.
No price source linked. Checked 29 September 2026.
Specs
- Input
- Text and audio
- Output
- Audio
- Context window
- Not published
- Max output
- Not published
- Open weights
- Yes
- Licence
- Apache-2.0
- Released
- 19 November 2025
- Status
- Current
- Type
- Speech and audio
What stands out
What its maker marketed at launch, and what people found later, each with its source.
Streaming multi-speaker dialogue TTS
Generates [S1]/[S2] dialogue and starts producing audio from the first few input tokens (no need for full text); conditions on audio prefixes for real-time conversation; up to ~2 min per generation (Mimi codec, 12.5 Hz); word-level timestamps.
Notes
English only. Successor to Dia-1.6B (April 2025, github.com/nari-labs/dia). Release date 2025-11-19 from secondary sources (GitHub releases page).
Sources: https://huggingface.co/nari-labs/Dia2-2B , https://github.com/nari-labs/dia2