§ models · storyline
Nvidia launches Nemotron 3 Ultra, trails Chinese rival Kimi K2.6
Nvidia launches Nemotron Ultra, a 550B-parameter mixture-of-experts open model that ranks as the top open US model but scores below China's Kimi K2.6 on benchmarks.
Maximilian Schreiner / The Decoder: Nvidia launches Nemotron 3 Ultra, a 550B-parameter MoE open model; Artificial Analysis: it's the smartest open US model but trails the Chinese model Kimi K2.6 — It has roughly 550 billion total parameters, with about 55 billion active at any given time. On the Artificial Analysis …
§ sources2 publications · timeline below
§ how this story moved
- primary — The Decoder publishes the launch post.
- Latent Space picks up coverage.