What it is
Nemotron-3-Nano-30B-A3B is a language model for chat, drafting and question answering, published by NVIDIA on Hugging Face on 4 December 2025. It has about 31.6 billion parameters and a configured context window of 262,144 tokens. It is a mixture-of-experts model: 128 experts, 6 used for each token, so only about 3B parameters are active at a time.
Its card lists the licence as a custom licence (nvidia-nemotron-open-model-license). In short, the licence sets its own terms; read it before any commercial use.
Hugging Face counted about 907,061 downloads of it in the 30 days before we checked (7 Oct 2026), and 825 people have liked it there.
The card lists 6 languages: en, es, fr, de, ja, it (ISO codes as given on the card).