NVIDIA has released Nemotron-Labs-3-Competitive-Coding, a 550‑billion‑parameter model fine‑tuned from Nemotron‑3‑Ultra for competitive programming. The model was trained for one epoch on approximately 477,642 synthetic examples to specialize in coding challenges. As part of the open Nemotron family, it provides open weights, training data, and recipes for building efficient, specialized AI agents.