Rebuild NVIDIA's speaker-captions demo with one transformers serve command

yb2698 · x · 2026-10-30

The Hugging Face team rebuilt NVIDIA's viral speaker-captions demo with transformers serve. Nemotron 3.5 Transcribe is the top open-weight model on the Open ASR Leaderboard: a promptable 30B MoE with 4B active parameters, covering 40 languages and up to 1 hour of audio, with speaker attribution, translation, and audio understanding.

Everything works through a single call to the /v1/audio/transcriptions endpoint. Serving it locally takes one command:

transformers serve nvidia/NVIDIA-Nemotron-3.5-Transcribe-30B-A4B

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