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Language model

Nemotron Nano 9B v2

NVIDIA

Released
August 18, 2025
Data date
September 26, 2026
Input
Text
Output
Text

Nemotron Nano 9B v2 combines Mamba2 and MLP layers with only four attention layers. Reasoning can be enabled, disabled, or constrained with a thinking budget.

The model card lists German, English, French, and Japanese among the supported languages. NVIDIA publishes its own comparisons with Qwen3-8B using reasoning mode, except for the RULER long-context test. RULER runs without an additional reasoning trace.

Specifications and access

SpecificationValue and source
Weights
Open weightsSource
Access
Parameters
9 billionSource
Context window
131,072 tokensSource
Maximum output
131,072 tokensSource
License
NVIDIA Open Model LicenseSource
Inputs
TextSource
Outputs
TextSource
Reasoning
Tool calling