Model Developer: NVIDIA Corporation

Model Development: Fine-tuned from NVIDIA-Nemotron-3-Ultra-550B-A55B

What is Nemotron?

NVIDIA Nemotron™ is a family of open models with open weights, training data, and recipes, delivering leading efficiency and accuracy for building specialized AI agents.

Description

Nemotron-Labs-3-Competitive-Coding is a competitive-programming specialist model based on Nemotron-3-Ultra, fine-tuned for one epoch on 477,642 synthetic reasoning traces distilled from GLM-5.2 across 22,000 curated problems spanning 16 regional and international competitive-programming contest families. Selected as the SFT teacher for its higher accuracy and roughly 30% shorter generations compared to a DeepSeek-V4-Flash-trained variant, GLM-5.2 distillation yields a model that, combined at inference time with GenCorrect — an iterative closed-loop test-time compute strategy that generates diverse candidate solutions, incorporates evaluator feedback, and refines subsequent generations under a fixed submission budget — was evaluated live and prospectively on the IOI 2026 problem set under official contest time, internet-access, and submission constraints, scoring 535.4 out of 600 and surpassing both the gold-medal threshold (361.12) and the top human contestant's score (498.27), making it the first AI system reported to outscore the highest-scoring human contestant on an IOI problem set.

This model is ready for commercial or non-commercial use.