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Nemotron-H

NVIDIAOpen WeightsPending Human Review

Nemotron-H is an NVIDIA language-model family. First published in April 2025, this research family studies efficient hybrid language models built primarily from Mamba-2 and MLP layers with selected attention layers. The initial release supplies completion checkpoints; later reasoning and long-context variants have their own cards and license terms. The representative initial 8B base supports 8K context. Downloadable weights enable experiments and adaptation, subject to the checkpoint-specific license. Model-generated text and reasoning can be inaccurate, so capability claims should be checked in the intended application.

2025-04-04
4B, 8B, 47B, 56B
Hybrid Mamba-2 / Transformer
NVIDIA Internal Scientific Research and Development Model License (initial base checkpoints)

Specifications

Parameters
4B, 8B, 47B, 56B
Architecture
Hybrid Mamba-2 / Transformer
License
NVIDIA Internal Scientific Research and Development Model License (initial base checkpoints)
Context Window
8,192 tokens
Type
text
Modalities
text

Benchmark Scores

Advanced Specifications

Model Family
Nemotron
API Access
Not Available
Chat Interface
Not Available
Variants
4B8B47B56BLater reasoning and 128K variants

Capabilities & Limitations

Capabilities
text generationreasoning
Known Limitations
License and capabilities may vary by checkpointOutputs may hallucinate
Notable Use Cases
model researchenterprise assistantscustomization

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