GPT-6 Astra (Max) vs Nemotron 3 Ultra 550B A55B (Reasoning)
Which is better for the money: GPT-6 Astra (Max) 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
GPT-6 Astra (Max) scores 29.8 points higher (52.7 vs 22.9) but costs 8.9× as much to run the benchmark ($5324 vs $596; flagship vs premium cost classes). They are not alternatives at one budget: pick GPT-6 Astra (Max) when you need intelligence above 22.9, and Nemotron 3 Ultra 550B A55B (Reasoning) when 22.9 is enough.
| Metric | GPT-6 Astra (Max) | Nemotron 3 Ultra 550B A55B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 52.7 | 22.9 | −56.5% Nemotron 3 Ultra 550B… is 56.5% less intelligent |
| Total AA cost (lower is better) | $5,324.10 | $596.33 | −88.8% Nemotron 3 Ultra 550B… is 88.8% cheaper |
| End-to-end time (lower is better) | 369.90s | 14.75s | −96.0% Nemotron 3 Ultra 550B… is 96.0% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $0.60 / $2.70 | |
| Input modalities | Text, Image | Text |
Nemotron 3 Ultra 550B A55B (Reasoning) vs GPT-6 Astra (Max): 56.5% less intelligence, 88.8% less cost to run the AA benchmark, and 96.0% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Astra (Max) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- 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-6 Astra (Max)Nemotron 3 Ultra 550B A55B (Reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-6-astra/nvidia-nemotron-3-ultra-550b-a55b · Markdown: /api/v1/compare/gpt-6-astra/nvidia-nemotron-3-ultra-550b-a55b?format=md · llms.txt · agent skill