
**Know Who Spoke When: Build Real-Time, Multi-Speaker AI with NVIDIA Nemotron 3 Diarization**
NVIDIA has released Nemotron 3 Diarization, an open-weight model designed to identify which speaker is talking in real-time and recorded conversations. The 100M-parameter model supports up to eight speakers and currently ranks first on Voice Arena's Diarization-Bench leaderboard. It achieves a 14.72% Diarization Error Rate while maintaining low latency for streaming applications.
- ▪NVIDIA Nemotron 3 Diarization is an open-weight model with 100 million parameters that supports up to eight speakers.
- ▪The model ranks #1 on Voice Arena's Diarization-Bench with a Diarization Error Rate of 14.72%.
- ▪It utilizes an arrival-time ordering approach to maintain stable speaker labels across streaming audio chunks.
- ▪The system achieves an average 40% relative reduction in Diarization Error Rate at a latency of 1.04 seconds.
- ▪Nemotron 3 Diarization can be integrated with Automatic Speech Recognition to produce speaker-attributed transcripts.
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| Publication time | Wed, 23 Sep 2026 13:17:01 GMT |
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Back to Articles Know Who Spoke When: Build Real-Time, Multi-Speaker AI with NVIDIA Nemotron 3 Diarization Enterprise + Article Published September 23, 2026 Upvote - Francesco fciannella Follow nvidia Maryam Motamedi maryameee Follow nvidia Taejin Park taejinp Follow nvidia Ivan Medennikov imedennikov Follow nvidia Adi- margolin Amargolin Follow nvidia Turn overlapping conversations into speaker-aware data with one open-weight, 100M-parameter model - ranked #1 in Voice Arena's initial Diarization-Bench results.
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