NVIDIA: Nemotron 3 Ultra
1M ctxtextOpen weight561B params$0.50/M in · $2.50/M out
AA-LCR 69.8 · GDPVal 47.6 · Japanese 5 · MMLU-Pro 81.9 · BrowseComp 54.1 · PinchBench 77.6 · Multi-Challenge 42.5 · SWE-Bench Verified 72.2 · OmniScience Accuracy 20.5 · SWE-Bench Multilingual 69.2
NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...