Audio modelOpen weights
Nemotron-3-Diarization
NVIDIA
- Released
- September 23, 2026
- Data date
- October 3, 2026
- Model class
- Access
Nemotron-3-Diarization assigns audio segments to up to eight speakers. NVIDIA’s card describes streaming and offline modes, 10 millisecond output resolution, and the OpenMDW-1.1 license.
Nemotron-3-Diarization uses local open weights rather than a hosted transcription service. It returns speaker segments, not a spoken audio response.
Specifications and access
| Specification | Value and source |
|---|---|
| Model class | Speaker diarizationSource |
| Access | Local weightsSource |
| Input | AudioSource |
| Output | Speaker segments with time resolutionSource |
| Checkpoint | nvidia/Nemotron-3-DiarizationSource |
| License | OpenMDW-1.1Source |
| Speakers | Up to eight speakers in streaming and offline modesSource |
| Time resolution | Output resolution in 10 millisecond stepsSource |
Measurements without matching peer values
These measurements have no matching peer values under the same test conditions. Their original values and sources remain available here.
DER (Show measurement, test conditions, and source)
- Source value
- 14.72
- Score
- 14.72
- Metric
- diarization error rate
- Unit
- %
- Benchmark version
- v1
- Category
- audio
- Direction
- Lower is better
- Source type
- independent-evaluator
- Evaluator
- NVIDIA Nemotron announcement
- Status
- active
- Retrieved at
- 2026-10-04
- Methodology
- Independent evaluation. 12 systems, 17 configurations, 139 English conversations (~22 h), overlap scored, 0 s collar
- Context
- VoiceArena uses its own cohort and protocol; NVIDIA's other rows remain separate vendor evaluations.
DER at 1.04 s (Show measurement, test conditions, and source)
- Source value
- 13.18
- Score
- 13.18
- Metric
- diarization error rate
- Unit
- %
- Benchmark version
- source version not stated
- Category
- audio
- Direction
- Lower is better
- Source type
- vendor-reported
- Evaluator
- NVIDIA Nemotron announcement
- Status
- active
- Retrieved at
- 2026-10-04
- Methodology
- Vendor-reported result. 901 recordings
- Context
- Source-specific observation; it does not establish a compatible cross-model cohort.
full DER (Show measurement, test conditions, and source)
- Source value
- 12.73
- Score
- 12.73
- Metric
- diarization error rate
- Unit
- %
- Benchmark version
- source version not stated
- Category
- audio
- Direction
- Lower is better
- Source type
- vendor-reported
- Evaluator
- NVIDIA Nemotron announcement
- Status
- active
- Retrieved at
- 2026-10-04
- Methodology
- Vendor-reported result. Provider comparison to prior model (19.09%)
- Context
- Source-specific observation; it does not establish a compatible cross-model cohort.
Sources and data date
Every statement links to its underlying documentation or leaderboard.
| Type | Evidence and data date |
|---|---|
| Research status | Research date October 4, 2026. 1 source URLs checked. This documents the inspected sources, not an exhaustive inventory of every publication. |
| Additional source | NVIDIA Nemotron-3-Diarization model card (retrieved October 3, 2026) · NVIDIA Nemotron-3-Diarization model card · Editorial description reviewed October 3, 2026 |
| Additional source | NVIDIA Nemotron announcement (retrieved October 4, 2026) |