Claims and evidence
- Released Primary source[1]Release Date; Model Version
- Status AvailableOpen weights still downloadable from NVIDIA's Hugging Face organisation. NVIDIA has marked only its hosted API endpoint on build.nvidia.com as deprecated (see notes); no deprecation of the model weights was found. Primary source[1]model card and files
- Successor of Llama-3.1-Nemotron-Nano-8B-v1NVIDIA's article on Nano 4B v1.1 refers to Llama 3.1 Nemotron Nano 8B v1 as the previous version. Primary source[2]Training Recipe for Llama 3.1 Nemotron Nano 4B v1.1
- Change · Size About half the parameters of Nano 8B v1: 4 billion instead of 8 billion.Compared with Llama-3.1-Nemotron-Nano-8B-v1 Primary source[2]Advancing Reasoning SLMs for On-device Agentic AI [3]Nano
- Change · Architecture Built on Llama-3.1-Minitron-4B-Width-Base, which NVIDIA pruned and distilled from Llama 3.1 8B, instead of directly on Llama-3.1-8B-Instruct.Compared with Llama-3.1-Nemotron-Nano-8B-v1 Primary source[1]Model Overview [4]Model Overview
- Input text Primary source[1]Input
- Output text Primary source[1]Output
- Feature Reasoning modeReasoning on or off is selected through the system prompt. Primary source[1]Quick Start and Usage Recommendations [2]How to Use Llama 3.1 Nemotron Nano 4B v1.1
- Feature Tool use Primary source[1]Model Overview [2]Function Calling with Llama 3.1 Nemotron Nano 4B v1.1
- Open weights YesGoverned by the NVIDIA Open Model License; the Llama 3.1 Community License Agreement also applies (Built with Llama). Primary source[1]License/Terms of Use
- Context window 131,072 tokens tokensThe model overview also gives the context length as 128K. Primary source[1]Input
- Parameters 4 billion Primary source[2]Advancing Reasoning SLMs for On-device Agentic AI
- Access Open-weights download, APICheckpoints on Hugging Face and an NVIDIA NIM on build.nvidia.com; NVIDIA has since marked the hosted API deprecated (no longer supported after 04/17/2026). Primary source[2]Try It Now! [5]endpoint page
Lineage
Predecessors
- Llama-3.1-Nemotron-Nano-8B-v1 · 18 March 2025
Successors
No known successor.
Based on
Not derived from another model.
Variants and derived
None recorded.
Siblings
None recorded.
All ancestors
- LLaMA · Meta · 24 February 2023
- Llama 2 · Meta · 18 July 2023
- Meta Llama 3 · Meta · 18 April 2024
- Llama 3.1 · Meta · 23 July 2024
- Llama-3.1-Nemotron-Nano-8B-v1 · 18 March 2025
All descendants
None.
Variants
No variants recorded in this record.
Related AI Radar coverage
AI Radar coverage starts in June 2026; no coverage linked yet.