GPT-6.1 Sol (Xhigh) vs Nemotron 3 Ultra 550B A55B (Reasoning)
Which is better for the money: GPT-6.1 Sol (Xhigh) 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 2026-10-24.
Clear winner
Verdict
Pick GPT-6.1 Sol (Xhigh)
Nemotron 3 Ultra 550B A55B (Reasoning) vs GPT-6.1 Sol (Xhigh): 55.1% less intelligence, 5.2% more cost to run the AA benchmark, and 78.1% faster end-to-end.
| Metric | GPT-6.1 Sol (Xhigh) | Nemotron 3 Ultra 550B A55B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 51.0 | 22.9 | −55.1% Nemotron 3 Ultra 550B… is 55.1% less intelligent |
| Total AA cost (lower is better) | $662.28 | $696.84 | +5.2% Nemotron 3 Ultra 550B… is 5.2% more expensive |
| End-to-end time (lower is better) | 86.31s | 18.94s | −78.1% Nemotron 3 Ultra 550B… is 78.1% faster |
| 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
- GPT-6.1 Sol (Xhigh) is on today's frontier: nothing is both smarter and cheaper.
- Nemotron 3 Ultra 550B A55B (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
GPT-6.1 Sol (Xhigh)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/gpt-6-1-sol-xhigh/nvidia-nemotron-3-ultra-550b-a55b · Markdown: /api/v1/compare/gpt-6-1-sol-xhigh/nvidia-nemotron-3-ultra-550b-a55b?format=md · llms.txt · agent skill