NVIDIA Nemotron 3 Ultra: 550B Open-Weight MoE You Can Host
1Key Takeaways
- Originally published on AI Tech Connect .
- What builders need to know It is a real open release.
- NVIDIA published weights, training data and recipes for a 550B-parameter model under the Linux Foundation's permissive OpenMDW-1.1 licence — not a research-only or gated one.
- A hybrid Mamba-2 plus Transformer MoE, 550B total with just 55B active per token, giving high throughput at a 1M-token context window.
2AIWedia Score
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3Why it matters
Coding AI shifts how fast software ships and how much human review each change needs. DEV — ML reports that originally published on AI Tech Connect .
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