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Nemotron Labs 3 Competitive Coding

NVIDIAOpen WeightsPending Human Review

Nemotron Labs 3 Competitive Coding is an open-weight NVIDIA language-model release. A competitive-programming specialist trained from the Nemotron 3 Ultra base model with supervised learning and reasoning reinforcement learning. It generates candidate algorithmic solutions and supports research on difficult coding contests. The public checkpoint is NVFP4. Contest results involving multiple candidate searches or GenCorrect evaluate a system rather than a single response. 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
262,144 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

Capabilities & Limitations

Capabilities
reasoningcoding
Known Limitations
Not a general chat or agent model; contest scores depend on test-time searchOutputs may be incorrect despite reasoning traces
Notable Use Cases
model researchself-hosted reasoningspecialist data generation

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