[X]score: 0.70
NVIDIA Nemotron 3 Ultra: 550B MoE Open Model, 5x Faster Inference
June 4, 2026
Nemotron 3 Ultra is a 550B parameter mixture-of-experts open model targeting long-running agentic tasks, claiming 5x faster inference and up to 30% lower cost versus comparable open frontier models. It is available now as an open release.
HOW THIS AFFECTS YOU
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builderOpen weights plus 5x inference speedup and 30% cost reduction make this a strong candidate to replace closed models in production agentic pipelines today.
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researcherA 550B MoE architecture optimized for long-context agentic tasks provides a new open baseline for evaluating reasoning and multi-step planning at frontier scale.
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founder30% cost reduction on complex agentic tasks from an open model directly compresses the unit economics argument for using closed frontier APIs.