Nemotron 3 Ultra 550B A55B (Reasoning): benchmark results

Provider: NVIDIA. Released 2026-06-04. Access: Open.

Unified ELO 1599 ± 1, rank #444 of 1761 rated models, from 38 benchmark results.

Strongest benchmark results

BenchmarkScoreMetricPercentile
AA IFBench81.36Accuracy (%)99.3
AA Long Context Reasoning79.33Accuracy (%)86.9
AA Terminal-Bench Hard36.36Accuracy (%)83.3
AA Omniscience - Software Engineering (SWE) - TypeScript36.67Accuracy (%)82.4
AA GPQA Diamond86.67Accuracy (%)81.7
AA Omniscience - Software Engineering (SWE) - C50Accuracy (%)81.2
AA Omniscience-0.4Score80.7
AA Omniscience - Software Engineering (SWE) - HTML44Accuracy (%)80.7
Artificial Analysis Intelligence Index29.55Intelligence Index80.7
AA Humanity's Last Exam28.41Accuracy (%)80.2
AA CritPt3.14Accuracy (%)74.6
AA Omniscience - Software Engineering (SWE) - Java20Accuracy (%)74.1

Interactive version: theaggregate.ai/model?slug=nemotron-3-ultra-550b-a55b-reasoning · How It Works · Data refreshed daily, snapshot 2026-09-05.