# Nvidia releases Nemotron 3 Diarization, a 100M-parameter model tracking up to 8 speakers

Digest AI · Generative AI & Models · published 2026-09-23T18:17:14Z

Canonical: https://digestai.news/story/nvidia-releases-nemotron-3-diarization-a-100m-parameter-model-tracking

## Summary

Nvidia announced the open‑weight speaker diarization model Nemotron 3 Diarization on Hugging Face. The 100 million‑parameter model can identify who spoke when in audio streams, handling up to eight overlapping speakers with a single checkpoint that works for both offline recordings and real‑time streaming. The weights are released under the OpenMDW License 1.1, which permits commercial use, and the model runs on Linux via Nvidia NeMo using Ampere, Ada Lovelace, Hopper or Blackwell GPUs.

In Voice Arena’s initial Diarization‑Bench, Nemotron 3 Diarization ranked first among twelve systems, achieving a 14.72% diarization error rate (DER) versus 19.3% for the runner‑up, roughly a 24% relative improvement. Nvidia notes these results may change once Voice Arena completes its Version 1 evaluation. The model is not yet available through Hugging Face Inference Providers, but production deployments can use Baseten, DigitalOcean, or Argmax Pro SDK 3.

## Key points

- Nemotron 3 Diarization is a 100M‑parameter open‑weight model that tracks up to eight overlapping speakers.
- The model ranked first on Voice Arena’s Diarization‑Bench with 14.72% DER, about 24% better than the next system.
- Weights are released under the OpenMDW License 1.1, allowing commercial use, and run on Nvidia GPUs via NeMo.

## Why it matters

An open‑weight, commercially licensed diarization model lets developers add speaker attribution to transcripts without building their own system, accelerating meeting analytics, podcast workflows, and voice‑agent memory.

## Sources

1. [NVIDIA Releases Nemotron 3 Diarization: A 100M-Parameter Open-Weight Model That Tracks 8 Speakers in Real Time](https://marktechpost.com/2026/09/23/nvidia-releases-nemotron-3-diarization) (MarkTechPost, 2026-09-23)

## Cite

Digest AI, "Nvidia releases Nemotron 3 Diarization, a 100M-parameter model tracking up to 8 speakers", 23 September 2026, https://digestai.news/story/nvidia-releases-nemotron-3-diarization-a-100m-parameter-model-tracking

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