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Nemotron Labs Ultra Math

NVIDIAOpen WeightsPending Human Review

Nemotron Labs Ultra Math is an open-weight NVIDIA language-model release. NVIDIA’s released olympiad mathematics specialists build on Nemotron 3 Ultra for rigorous proof generation, checking, and self-evaluation. The SFT and reinforcement-learning checkpoints are grouped here. They were used in an ensemble with inference-time scaling for IMO-level problem solving; ensemble medal-level claims are not standalone model accuracy. The license permits commercial and non-commercial use subject to its published terms.

2026-09-03
550B total, 55B active
Hybrid Mamba-2 / Transformer mixture-of-experts with latent experts and multi-token prediction
OpenMDW-1.1

Specifications

Parameters
550B total, 55B active
Architecture
Hybrid Mamba-2 / Transformer mixture-of-experts with latent experts and multi-token prediction
License
OpenMDW-1.1
Context Window
1,048,576 tokens
Type
text
Modalities
text

Benchmark Scores

Advanced Specifications

Model Family
Nemotron
Finetuned From
Nemotron 3 Ultra
API Access
Not Available
Chat Interface
Not Available
Variants
SFTRL

Capabilities & Limitations

Capabilities
mathematical reasoningproof generationproof verification
Known Limitations
Specialized for mathematical proofs; large ensembles and inference budgets were used in contest evaluationOutputs may be incorrect despite reasoning traces
Notable Use Cases
model researchself-hosted reasoningspecialist data generation

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