Model reference · open weights
Nemotron-3-Nano-Omni-Reasoning is an open-weight language model from NVIDIA. Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16 (BF16) weighs 66.0 GB; the smallest configuration that runs it is H100 80 GB.
Summary of the nvidia/Nemotron-3-Nano-Omni-30B-A3B-Reasoning-NVFP4 model card, 2026-10-01. The estimate below is for another build of the family.
What it is
| Released by | NVIDIA |
|---|---|
| Released | 2026-04-24 |
| Parameters | 18.3B |
| VRAM | 66.0 GB for the weights |
What it runs on
| Card | Requests at once | Context max | Memory | |
|---|---|---|---|---|
| 8K each | 32K each | |||
| RTX 3060 12 GB … L40S 48 GB 6 smaller cards | — | — | — | |
| A100 80 GB | 63 | 31 | all 256K | 78.2 GB |
| H100 80 GB | 22 | 11 | all 256K | 78.1 GB |
| RTX PRO 6000 Blackwell 96 GB | 128 | 63 | all 256K | 93.8 GB |
| DGX Spark (GB10) 128 GB unified | 219 | 108 | all 256K | 107 GB |
| H200 141 GB | 425 | 211 | all 256K | 138 GB |
| B200 180 GB | 660 | 327 | all 256K | 176 GB |
| 2× L40S 48 GB tensor parallel | 111 | 55 | all 256K | 44.0 GB a card |
| 4× RTX 4090 24 GB tensor parallel | 83 | 33 | all 256K | 23.4 GB a card |
| 4× RTX 3090 24 GB tensor parallel | 84 | 33 | all 256K | 23.4 GB a card |
| 4× RTX 5090 32 GB tensor parallel | 238 | 94 | all 256K | 31.0 GB a card |
| 2× H100 80 GB tensor parallel | 489 | 242 | all 256K | 78.1 GB a card |
| 2× A100 80 GB tensor parallel | 572 | 283 | all 256K | 78.2 GB a card |
| Requests at once | 8K tokens each | 32K tokens each |
|---|---|---|
| 1 | 68.9 GB | 69.0 GB |
| 5 | 69.4 GB | 70.2 GB |
| 8 | 69.9 GB | 71.1 GB |
| 16 | 71.1 GB | 73.5 GB |
| 32 | 73.5 GB | 78.3 GB |
| 64 | 78.2 GB | 87.9 GB |
One card, with vLLM's small-card settings.
Builds
| Build | Params | Precision | Weights | Smallest setup |
|---|---|---|---|---|
| Nemotron-3-Nano-Omni-30B-A3B-Reasoning-NVFP4 ↗ | 18.3B | NVFP4 | 22.4 GB | 2× RTX 4060 Ti 16 GB |
| Nemotron-3-Nano-Omni-30B-A3B-Reasoning-FP8 ↗ | 33.0B | FP8 | 35.2 GB | L40S 48 GB |
| Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF16 (above) ↗ | 33.0B | BF16 | 66.0 GB | H100 80 GB |
From the model card
| Total parameters | 31B (Mamba2-Transformer hybrid MoE) |
| Active parameters | ~3B per token |
| Max context | 256k tokens |
| Modalities (in) | Video, Audio, Image, Text |
| Modality (out) | Text |
| Reasoning mode | On by default; toggle via enable_thinking |
| Best for | Video+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 |
| Precisions | BF16 (62 GB) · FP8 (33 GB) · NVFP4 (21 GB) |
| Mode | temperature | top_p | top_k | max_tokens | reasoning_budget | grace_period |
|---|---|---|---|---|---|---|
| Thinking mode | 0.6 | 0.95 | — | 20480 | 16384 | 1024 |
| Instruct mode | 0.2 | — | 1 | 1024 | — | — |
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.
Governing Terms: Use of this model is governed by the NVIDIA Open Model Agreement
Global
This model is designed for enterprise customers requiring multimodal understanding capabilities. Expected users include:
Build.Nvidia.com 04/28/2026 via URL Hugging Face 04/28/2026 via:
NGC 04/28/2026 via URL
Architecture Type: Mamba2-Transformer Hybrid Mixture of Experts (MoE)
Network Architecture:
Number of model parameters: 3.1 x 10^10 (31B A3B)
Input Type(s): Video, Audio, Image, Text
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Input Parameters:
Other Properties Related to Input:
Output Type(s): Text
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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.
Runtime Engine(s):
Supported Hardware Microarchitecture Compatibility:
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Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.