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Nemotron Labs Audex

NVIDIAOpen WeightsPending Human Review

Audex is NVIDIA’s unified audio-text language-model family, designed to add speech and sound understanding and generation while retaining text reasoning. Audio encoders project inputs into the language embedding space; quantized audio and text tokens share a decoder. The main 30B sparse checkpoint builds on Nemotron-Cascade 2, and a smaller dense 2B tier is also released. It supports audio question answering, spoken dialogue, speech translation, and text reasoning. The research paper publicly releases the checkpoints on July 6; the card’s June 8 date conflicts with that publication record.

2026-07-06
2B dense; 30B sparse with 3B active
Unified Transformer decoder with audio encoder and audio-token generation
NVIDIA OneWay Noncommercial License

Specifications

Parameters
2B dense; 30B sparse with 3B active
Architecture
Unified Transformer decoder with audio encoder and audio-token generation
License
NVIDIA OneWay Noncommercial License
Context Window
1,048,576 tokens
Type
multimodal
Modalities
textaudio

Benchmark Scores

Advanced Specifications

Model Family
Nemotron Labs Audex
API Access
Not Available
Chat Interface
Not Available
Variants
2B30B-A3B

Capabilities & Limitations

Capabilities
audio reasoningspeech-to-speechspeech translationtext reasoning
Known Limitations
Non-commercial research licenseContext differs by tier and audio token usageConflicting June card date; public paper date used
Notable Use Cases
audio-language researchspoken assistants

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