Model reference · open weights

Nemotron-3-Nano-Omni-Reasoning

LLMs nvidia Omni (any→any) · MoE 3 builds Its own licence terms 1.1M dl/mo

Nemotron-3-Nano-Omni-Reasoning is an open-weight language model from NVIDIA. Nemotron-3-Nano-Omni-30B-A3B-Reasoning-NVFP4 (NVFP4) weighs 22.4 GB; the smallest configuration that runs it is 2× RTX 4060 Ti 16 GB.

  • Nemotron-3-Nano-Omni-Reasoning is a multimodal large language model developed by NVIDIA that accepts video, audio, image, and text inputs to produce text outputs.
  • It is designed for enterprise applications including document intelligence, video and speech analysis, and GUI automation.
  • The model features a 31B parameter Mamba2-Transformer hybrid MoE architecture with approximately 3B active parameters per token and supports a maximum context length of 256k tokens.
  • It is available under the NVIDIA Open Model Agreement and supports English only.

Summary of the nvidia/Nemotron-3-Nano-Omni-30B-A3B-Reasoning-NVFP4 model card, 2026-10-01

What it is

Released byNVIDIA
Released2026-04-24
Parameters18.3B
VRAM22.4 GB for the weights

What it runs on

Memory and cards for Nemotron-3-Nano-Omni-30B-A3B-Reasoning-NVFP4 (NVFP4)

22.4 GBweights, file size
3 MBcache per 1K tokens (8-bit)
98 MBfixed state per request
2.7 GBruntime overhead, at least
262,144 tokenscontext max
CardRequests at onceContext maxMemory
8K each32K each
RTX 3060 12 GB … RTX 4090 24 GB
4 smaller cards
———
RTX 5090 32 GB4829all 256K31.0 GB
L40S 48 GB
FP4 without its speed-up here
15394all 256K44.0 GB
A100 80 GB
FP4 without its speed-up here
430267all 256K78.2 GB
H100 80 GB
FP4 without its speed-up here
380236all 256K78.1 GB
RTX PRO 6000 Blackwell 96 GB508315all 256K93.8 GB
DGX Spark (GB10) 128 GB unified617383all 256K107 GB
H200 141 GB
FP4 without its speed-up here
866537all 256K138 GB
B200 180 GB1000+713all 256K176 GB
2× RTX 4060 Ti 16 GB
tensor parallel · FP4 without its speed-up here
2415all 256K15.4 GB a card
2× RTX 4090 24 GB
tensor parallel · FP4 without its speed-up here
15395all 256K23.4 GB a card
2× RTX 3090 24 GB
tensor parallel · FP4 without its speed-up here
15495all 256K23.4 GB a card
Memory needed at each load
Requests at once8K tokens each32K tokens each
125.2 GB25.3 GB
525.7 GB26.1 GB
826.1 GB26.7 GB
1627.1 GB28.3 GB
3229.0 GB31.4 GB
6433.0 GB37.8 GB

One card, with vLLM's small-card settings.

Builds

Sizes, precisions & builds

BuildParamsPrecisionWeightsSmallest setup
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-NVFP4 (above) ↗ 18.3BNVFP4 22.4 GB2× RTX 4060 Ti 16 GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-FP8 ↗ 33.0BFP8 35.2 GBL40S 48 GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16 ↗ 33.0BBF16 66.0 GBH100 80 GB

From the model card

What NVIDIA says about Nemotron-3-Nano-Omni-Reasoning

Read the model card

At a Glance

Total parameters31B (Mamba2-Transformer hybrid MoE)
Active parameters~3B per token
Max context256k tokens
Modalities (in)Video, Audio, Image, Text
Modality (out)Text
Reasoning modeOn by default; toggle via enable_thinking
Best forVideo+speech analysis, document intelligence (OCR/charts/long docs), GUI/agentic workflows, ASR
Minimum GPU (BF16)1× H100 80GB (single-GPU); 1× B200 / 1× H200 recommended
Minimum GPU (FP8)1× L40S 48GB; 1× RTX Pro 6000 / 1× B200 recommended
Minimum GPU (NVFP4)1× RTX 5090 32GB; 1× DGX Spark / 1× Jetson Thor also supported
PrecisionsBF16 (62 GB) · FP8 (33 GB) · NVFP4 (21 GB)

Quick Start Guide

Model Parameters

Modetemperaturetop_ptop_kmax_tokensreasoning_budgetgrace_period
Thinking mode0.60.95—20480163841024
Instruct mode0.2—11024——

Model Overview

Description:

NVIDIA Nemotron 3 Nano Omni is a multimodal large language model that unifies video, audio, image, and text understanding to support enterprise-grade Q&A, summarization, transcription, and document intelligence workflows. It extends the Nemotron Nano family with integrated video+speech comprehension, Graphical User Interface (GUI), Optical Character Recognition (OCR), and speech transcription capabilities, enabling end-to-end processing of rich enterprise content such as meeting recordings, M&E assets, training videos, and complex business documents. NVIDIA Nemotron 3 Nano Omni was developed by NVIDIA as part of the Nemotron model family.

This model is available for commercial use.

This model was improved using Qwen3-VL-30B-A3B-Instruct, Qwen3.5-122B-A10B, Qwen3.5-397B-A17B, Qwen2.5-VL-72B-Instruct, and gpt-oss-120b. For more information, please see the Training Dataset section below.

License/Terms of Use

Governing Terms: Use of this model is governed by the NVIDIA Open Model Agreement

Deployment Geography:

Global

Use Case:

This model is designed for enterprise customers requiring multimodal understanding capabilities. Expected users include:

  • Customer service applications (e.g., Doordash video of drop-off at a given address via OCR, drive-thru order verification)
  • Media and Entertainment (M&E) — video and speech analysis, dense captions, video search and summarization
  • Document intelligence for AI assistants (contracts, SOW/MSA, scientific discovery, financial documents)
  • GUI automation for AI agentic applications (incident management, agentic search, browser agents, email agents)

Release Date:

Build.Nvidia.com 04/28/2026 via URL Hugging Face 04/28/2026 via:

NGC 04/28/2026 via URL

Model Architecture:

Architecture Type: Mamba2-Transformer Hybrid Mixture of Experts (MoE)

Network Architecture:

Number of model parameters: 3.1 x 10^10 (31B A3B)

Input(s):

Input Type(s): Video, Audio, Image, Text

Input Format(s):

  • Video: mp4, up to 2 minutes. For 1080p videos, sample up to 1 FPS / 128 frames. For lower-resolution videos such as 720p, higher temporal sampling such as 2 FPS / 256 frames may be used.
  • Audio: wav, mp3 files (up to 1 hour), 8kHz and higher sampling rates
  • Image: Red, Green, Blue (RGB) (jpeg, png)
  • Text: String

Input Parameters:

  • Video: Three-Dimensional (3D)
  • Audio: One-Dimensional (1D)
  • Image: Two-Dimensional (2D)
  • Text: One-Dimensional (1D)

Other Properties Related to Input:

  • Maximum context length up to 256k tokens
  • Language support: English only

Output(s)

Output Type(s): Text

Output Format(s):

  • Text: String

Output Parameters:

  • Text: One-Dimensional (1D)

Other Properties Related to Output:

  • Maximum context length up to 256k tokens.
  • Supports JSON output format
  • Supports reasoning output with chain-of-thought
  • Supports tool calling
  • Supports word-level timestamps for transcription

Our AI models are designed and/or optimized to run on NVIDIA GPU-accelerated systems. By leveraging NVIDIA's hardware (e.g. GPU cores) and software frameworks (e.g., CUDA libraries), the model achieves faster training and inference times compared to CPU-only solutions.

Software Integration:

Runtime Engine(s):

  • vLLM
  • NeMo
  • Megatron
  • NeMo-RL

Supported Hardware Microarchitecture Compatibility:

  • NVIDIA Ampere (A100 80GB SXM/NVLink)
  • NVIDIA Blackwell (B200 SXM/NVLink, RTX Pro 6000 SE, DGX Spark, Jetson Thor, RTX 5090)
  • NVIDIA Hopper (H100 SXM/NVLink, H200 SXM/NVLink)
  • NVIDIA Lovelace (L40S)

Preferred/Supported Operating System(s):

  • Linux

Inference Runtimes:

  • vLLM
  • TensorRT LLM
  • TensorRT Edge-LLM
  • llama.cpp
  • Ollama
  • SGLang

Th

Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.

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