Claude Sonnet 5 (Medium) vs Nemotron 3 Ultra 550B A55B (Reasoning)
Which is better for the money: Claude Sonnet 5 (Medium) 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 2026-10-26.
Trade-off
Verdict
Depends on your budget
Claude Sonnet 5 (Medium) scores 5.2 points higher (28.1 vs 22.9) but costs 2.0× as much to run the benchmark ($1218 vs $596; both premium class). Pick Claude Sonnet 5 (Medium) when the extra intelligence is worth the premium, otherwise Nemotron 3 Ultra 550B A55B (Reasoning).
| Metric | Claude Sonnet 5 (Medium) | Nemotron 3 Ultra 550B A55B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 28.1 | 22.9 | −18.5% Nemotron 3 Ultra 550B… is 18.5% less intelligent |
| Total AA cost (lower is better) | $1,218.17 | $596.33 | −51.0% Nemotron 3 Ultra 550B… is 51.0% cheaper |
| End-to-end time (lower is better) | 9.30s | 15.27s | +64.2% Nemotron 3 Ultra 550B… is 64.2% slower |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $0.60 / $2.70 | |
| Input modalities | Text, Image | Text |
Nemotron 3 Ultra 550B A55B (Reasoning) vs Claude Sonnet 5 (Medium): 18.5% less intelligence, 51.0% less cost to run the AA benchmark, and 64.2% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5 (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- 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 (Medium)Nemotron 3 Ultra 550B A55B (Reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-sonnet-5-medium/nvidia-nemotron-3-ultra-550b-a55b · Markdown: /api/v1/compare/claude-sonnet-5-medium/nvidia-nemotron-3-ultra-550b-a55b?format=md · llms.txt · agent skill