gpt-oss-20b (High) vs Nemotron 3 Ultra 550B A55B (Reasoning)
Which is better for the money: gpt-oss-20b (High) by OpenAI 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.
Trade-off
Verdict
Depends on your budget
Nemotron 3 Ultra 550B A55B (Reasoning) scores 13.9 points higher (22.9 vs 9.0) but costs 21× as much to run the benchmark ($596 vs $28.8; premium vs budget cost classes). They are not alternatives at one budget: pick Nemotron 3 Ultra 550B A55B (Reasoning) when you need intelligence above 9.0, and gpt-oss-20b (High) when 9.0 is enough.
| Metric | gpt-oss-20b (High) | Nemotron 3 Ultra 550B A55B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 9.0 | 22.9 | +154.4% Nemotron 3 Ultra 550B… is 2.5× more intelligent |
| Total AA cost (lower is better) | $28.81 | $596.33 | +1969.9% Nemotron 3 Ultra 550B… is 21× more expensive |
| End-to-end time (lower is better) | 13.68s | 14.75s | +7.8% Nemotron 3 Ultra 550B… is 7.8% slower |
| Price per 1M tokens (in / out) | $0.05 / $0.22 | $0.60 / $2.70 | |
| Input modalities | Text | Text |
Nemotron 3 Ultra 550B A55B (Reasoning) vs gpt-oss-20b (High): 154.4% more intelligence, 1969.9% more cost to run the AA benchmark, and 7.8% slower end-to-end.
Today's Pareto frontier
Against the frontier
- gpt-oss-20b (High) is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
- 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.
gpt-oss-20b (High)Nemotron 3 Ultra 550B A55B (Reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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