Claude Sonnet 5.5 (Low, Default Fallback) vs Nemotron 3 Ultra 550B A55B (Reasoning)
Which is better for the money: Claude Sonnet 5.5 (Low, Default Fallback) by Anthropic or Nemotron 3 Ultra 550B A55B (Reasoning) by NVIDIA? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Clear winner
Verdict
Pick Claude Sonnet 5.5 (Low, Default Fallback)
Nemotron 3 Ultra 550B A55B (Reasoning) vs Claude Sonnet 5.5 (Low, Default Fallback): 36.2% less intelligence, 23.7% more cost to run the AA benchmark, and 156.8% slower end-to-end.
| Metric | Claude Sonnet 5.5 (Low, Default Fallback) | Nemotron 3 Ultra 550B A55B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 35.9 | 22.9 | −36.2% Nemotron 3 Ultra 550B… is 36.2% less intelligent |
| Total AA cost (lower is better) | $482.13 | $596.33 | +23.7% Nemotron 3 Ultra 550B… is 23.7% more expensive |
| End-to-end time (lower is better) | 5.83s | 14.97s | +156.8% Nemotron 3 Ultra 550B… is 156.8% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $0.60 / $2.70 | |
| Input modalities | Text, Image | Text |
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5.5 (Low, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
- Nemotron 3 Ultra 550B A55B (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
Claude Sonnet 5.5 (Low, Default Fallback)Nemotron 3 Ultra 550B A55B (Reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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