Artificial Analysis@ArtificialAnlys · XNVIDIA 发布 Nemotron 3 Ultra，为目前最智能的美国开源权重模型。在 Artificial Analysis Intelligence Index 得分 47.7，领先 Gemma 4 31B（39.2）、Nemotron 3 Super（36.0）和 gpt-oss-120b（33.3），但低于中国开源模型 Kimi K2.6（53.9）。模型总参数约 550B，激活 55B，推理速度超 400 tokens/s，较 gpt-oss-120b 略快且智能显著更高。NVFP4 精度得分 47.7，BF16 得分 48.2，精度差异极小。
NVIDIA has just released Nemotron 3 Ultra， the new most intelligent US open weights model， with leading speed for its intelligence
Nemotron 3 Ultra scores 47.7 on the Artificial Analysis Intelligence Index， well ahead of the next strongest US open weights models， Gemma 4 31B （39.2）， Nemotron 3 Super （36.0） and gpt-oss-120b （33.3）， but behind the Chinese-led open weights frontier （Kimi K2.6 at 53.9）.
We partnered with @NVIDIA to evaluate this model for intelligence and speed ahead of its public release. These figures use the final NVFP4 weights that NVIDIA recommends for inference， but our tests show minimal intelligence impact compared to BF16 testing， with higher precision resulting in an Artificial Analysis Intelligence Index score of 48.2 vs. the NVFP4 score of 47.7.