Artificial Analysis@ArtificialAnlys · XNVIDIA在Computex上发布了Nemotron 3 Ultra，总参数达550B（激活参数55B），是目前最大的Nemotron 3模型。该模型在美国开放权重模型中智能性最强，在Artificial Analysis Intelligence Index评测中得分为48，超越了Gemma 4 31B（39分），但仍落后于月之暗面（Kimi）的K2.6（54分）。在推理速度方面，其在预发布端点上超过了300 tokens/s，远高于同级别中国模型通常的50-100 tokens/s。该模型将提供BF16权重及NVFP4量化版本以提升推理性能。
NVIDIA just announced the release of Nemotron 3 Ultra in Jensen Huang's Computex keynote： at 550B parameters （55B active）， this is the largest Nemotron 3 model to date， and it is the most intelligent US open weights model
We partnered with @nvidia to evaluate this model for intelligence and speed - these figures use the model's BF16 weights， but as with Nemotron 3 Super the model will be made available in NVFP4 quantization as well for higher inference performance.
➤ New leader for US open weights intelligence： Nemotron 3 Ultra scores 48 on the Artificial Analysis Intelligence Index. This is well ahead of the next strongest US open weights models， Gemma 4 31B （39）， Nemotron 3 Super （36） and gpt-oss-120b （33）， but behind the Chinese-led open weights frontier （Kimi K2.6 at 54）.
➤ Leading speed for its intelligence： on a pre-release @DeepInfra endpoint， Nemotron 3 Ultra served over 300 tokens per second. Peer models in its size class from China-based labs such as DeepSeek and Moonshot （Kimi） are generally served at speeds of 50-100 tokens per second in the market today. gpt-oss-120b is served at speeds similar to this level， but with significantly lower intelligence.
➤ Largest Nemotron 3 model so far： at approximately 550 billion total parameters and 90% sparsity， Nemotron 3 Ultra is significantly larger than its siblings and is the largest recent US open weights model release
We'll be sharing additional analysis and full benchmarks at release.