NVIDIA open-sources Nemotron 3.5 Transcribe 30B ASR model; fine-tuning cuts word error rate 45.8%

NVIDIAAI · x · 2026-10-28

NVIDIA officially released Nemotron 3.5 Transcribe (30B-A4B), an open speech transcription model with weights, data, and recipes all available on Hugging Face, plus a live demo. It ships with Granary v2 open speech data and NeMo Speech fine-tuning tools; in a medical ASR case study, fine-tuning cut word error rate by 45.8% relative to the best prompt on held-out speakers, and NVIDIA published a guide for adapting it to your domain.

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