NVIDIA · nemotron_h_omni
Can I run nemotron3?
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.
Parameter counts and memory belong to each build below. A family can contain several sizes and tasks; fitting in memory is not a quality ranking.
Calculate memory for a build and contextnemotron3 system requirements
Memory needed at 4K context, counting model weights, KV cache, compute buffers and runtime overhead. Download sizes come from the official Ollama registry.
| Build | Quantization | Download | Memory needed |
|---|---|---|---|
| nemotron3:33b33B parameters (tag)128K documented maximum contextBuild sourceCatalog checked 2026-10-13 | Q4_K_M | 25.7 GB | ~31.4 GB |
Showing the 1 smallest non-alias builds. Choose any build and change the context. A context above the build's documented maximum is a hypothetical calculation, not a supported setting.
How to run nemotron3 locally
- 1.Install Ollama for Windows, macOS or Linux.
- 2.Download this exact build in a terminal:
ollama pull nemotron3:33b - 3.Check the source for the build's task. For text generation, run
ollama run nemotron3:33b. Base/text builds may need a prompt template; an instruct build is usually the appropriate starting point for a conversation.
Frequently asked questions about nemotron3
- How much VRAM do I need to run nemotron3?
- At 4K context, the smallest published build of nemotron3 (Q4_K_M) needs roughly 31.4 GB of GPU memory once weights, KV cache, compute buffers and runtime overhead are counted. Bigger quantizations and longer context windows need more. It can also run partly or entirely on the CPU using system RAM, more slowly.
- Can I run nemotron3 without a dedicated GPU?
- A supported CPU runtime can use system RAM. The smallest listed build needs an estimated 31.4 GB at 4K context, plus headroom for your operating system. Check the build's runtime requirements. We have not measured its speed on your CPU.
- How big is the nemotron3 download?
- The smallest published build is 25.7 GB. Leave some extra free disk space beyond the download itself.
- How do I run nemotron3 locally?
- Install Ollama, then download a specific build with "ollama pull nemotron3:33b". For a build that supports text generation, use ollama run with the same tag. Check the model source for its task and prompt format.
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Model data from the official Ollama registry · verified 13/10/2026