NVIDIA Releases Audex (Nemotron-Labs-Audex-30B-A3B): A Unified Audio-Text LLM That Preserves the Text Intelligence of Its Backbone
NVIDIA has released Audex (Nemotron-Labs-Audex-30B-A3B), a unified audio-text large language model. It understands and generates both audio and speech. It also keeps the text intelligence of its backbone. The checkpoints, along with a smaller Audex-2B, are released under a noncommercial license. Most multimodal models pay a text tax. When labs add audio or vision output, text benchmarks often drop. NVIDIA research team reports this even for speech-only output models. Audex is designed to avo
A unified audio-text language model was released that can both understand and generate audio and speech while maintaining the text performance of its underlying model. Most multimodal models experience a "text tax" where adding audio or vision capabilities causes text benchmark scores to drop, but this model was specifically designed to avoid that regression. The model uses a simple architecture that treats audio inputs and outputs similarly to text tokens, allowing it to run on standard language model software stacks. It was trained through multiple stages starting from a text-only foundation, followed by text-only reinforcement learning, which helped preserve strong text capabilities while adding audio abilities.
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