Model record
Nemotron 3 Ultra 550B-A55B model overview
Nemotron 3 Ultra 550B-A55B is a open weights model from NVIDIA. It was released on June 4, 2026. Its strongest case is one-million-token context, while buyers should account for custom license.
Nemotron 3 Ultra 550B-A55B benchmark snapshot
| Evaluation | Reported score | What it probes |
|---|---|---|
| MMLU-Pro | Not reported | Broad knowledge and multi-step reasoning |
| GPQA Diamond | Not reported | Graduate-level science reasoning |
| SWE-bench Verified | Not reported | Verified real-repository issue resolution |
| LiveCodeBench | Not reported | Contamination-aware competitive programming |
| SWE-Bench Pro | Not reported | Longer, harder professional software tasks |
| Artificial Analysis Intelligence Index | Not reported | Composite third-party capability index; version matters |
Scores are percentages reported by model creators or benchmark maintainers under varying settings. A blank is preferable to an inferred result. See our methodology.
Nemotron 3 Ultra 550B-A55B strengths
- One-million-token context
- Downloadable weights
Nemotron 3 Ultra 550B-A55B limitations
- Custom license
- No model-specific price
Editorial take: Benchmark rank should narrow a shortlist, not close a purchase. Run a private evaluation with representative prompts, failure cases, latency targets, and total token costs.
Source record
Specifications and scores are linked to the best source located during review. Provider-reported results are not presented as third-party lab reproductions.
Source limitation: Supplemental official model card: https://huggingface.co/nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16
Read NVIDIA Nemotron 3 Ultra research page ↗