NVIDIA open-sources Nemotron 3 Diarization, #1 on VoiceArena with 14.72% DER

solyarisoftware · x · 2026-09-24

NVIDIA released Nemotron 3 Diarization, an open-weight 100M-parameter speaker diarization model ranked #1 on VoiceArena's Diarization leaderboard with a 14.72% Diarization Error Rate (DER).

The model identifies who spoke when—including overlapping speech—and pairs with ASR to produce speaker-attributed transcripts for meetings, call analytics, podcasts, and voice-agent memory.

Related event: NVIDIA Open-Sources Nemotron 3, Topping Speaker Diarization Benchmarks(10 posts)→

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