Nemotron 3 Ultra
Weights and memory
| Format | File size | Your device | Link | ||
|---|---|---|---|---|---|
| 1121 GB | 1045 GB ◇ | Hugging Face |
Published by the lab. File size is what the repository lists; for original weights it is the total of the weight files, which can include more than one variant. ● memory stated by the publisher · ◇ estimate from file size, an 8K-token context and 0.5 GB for the runtime. Unknown means there is no figure to go on. Checked 2026-10-11.
Tests on this site
Not tested yetThis site has not run this model. What will be tested
Third-party scores
Measured by other sites on hosted endpoints. A quantized file you run yourself may score differently.
OpenRouter evals
| Endpoint | Benchmark | Score | Tasks run |
|---|---|---|---|
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | 81.2% ± 0.0 | 172 | |
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | 72.0% ± 0.0 | 50 |
Source: OpenRouter evals (openrouter.ai) via OpenRouter (openrouter.ai/rankings). openrouter.ai
Artificial Analysis
| Endpoint | Intelligence | Coding | Agentic |
|---|---|---|---|
| Nemotron 3 Ultra 550B A55B (Reasoning) | 22.9 | 49.3 | 20.1 |
Source: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings). artificialanalysis.ai
Design Arena
| Endpoint | Category | Win rate | |
|---|---|---|---|
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | codecategories | 1149 | 36.1% |
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | uicomponent | 1145 | 36.4% |
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | website | 1145 | 34.9% |
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | dataviz | 1144 | 37.4% |
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | gamedev | 1144 | 36.4% |
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | 3d | 1135 | 39.2% |
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | asciiart | 1104 | 38.1% |
| nvidia/nemotron-3-ultra-550b-a55b-20260604 | svg | 1068 | 32.5% |
Source: Design Arena (www.designarena.ai) via OpenRouter (openrouter.ai/rankings). designarena.ai