NVIDIA releases Nemotron Speech open models for low-latency agent voice interactions

What happened.NVIDIA released Nemotron Speech, an open-weights collection of speech recognition and speech-augmented models designed for sub-100 millisecond conversational agent execution.
Why it matters.Latency in conversational voice agents often exceeds one second because speech-to-text, reasoning, and speech synthesis run in disjointed serial steps. Compressing transcription latency below 100 milliseconds allows voice agent developers to build natural turn-taking interactions without proprietary hosted speech APIs.
The technical specifications:
- Multilingual transcription: The Nemotron 3.5 Transcribe model supports 40 languages, integrating real-time punctuation, speaker attribution, and prompt-directed text formatting.
- Edge and cloud deployment: Speech models run inside NVIDIA Riva microservices and deploy directly to Jetson edge hardware for robotics and physical devices.
- Permissive model weights: NVIDIA published weights and deployment recipes under an open commercial license across Hugging Face and NVIDIA NIM container registries.
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