GPT-5.6 Terra (High) vs Nemotron 3 Ultra 550B A55B (Reasoning)
Which is better for the money: GPT-5.6 Terra (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
GPT-5.6 Terra (High) scores 11.3 points higher (34.2 vs 22.9) but costs 1.3× as much to run the benchmark ($768 vs $596; both premium class). Pick GPT-5.6 Terra (High) when the extra intelligence is worth the premium, otherwise Nemotron 3 Ultra 550B A55B (Reasoning).
| Metric | GPT-5.6 Terra (High) | Nemotron 3 Ultra 550B A55B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.2 | 22.9 | −33.0% Nemotron 3 Ultra 550B… is 33.0% less intelligent |
| Total AA cost (lower is better) | $767.78 | $596.33 | −22.3% Nemotron 3 Ultra 550B… is 22.3% cheaper |
| End-to-end time (lower is better) | 7.30s | 14.75s | +102.1% Nemotron 3 Ultra 550B… is 102.1% slower |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $0.60 / $2.70 | |
| Input modalities | Text, Image | Text |
Nemotron 3 Ultra 550B A55B (Reasoning) vs GPT-5.6 Terra (High): 33.0% less intelligence, 22.3% less cost to run the AA benchmark, and 102.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Terra (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- 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-5.6 Terra (High)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-5-6-terra-high/nvidia-nemotron-3-ultra-550b-a55b · Markdown: /api/v1/compare/gpt-5-6-terra-high/nvidia-nemotron-3-ultra-550b-a55b?format=md · llms.txt · agent skill