GPT-5.4 nano (Xhigh) vs GPT-5.6 Sol (Medium)
Which is better for the money: GPT-5.4 nano (Xhigh) by OpenAI or GPT-5.6 Sol (Medium) by OpenAI? 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
GPT-5.6 Sol (Medium) scores 18.5 points higher (39.2 vs 20.7) but costs 3.0× as much to run the benchmark ($997 vs $331; premium vs mid-range cost classes). They are not alternatives at one budget: pick GPT-5.6 Sol (Medium) when you need intelligence above 20.7, and GPT-5.4 nano (Xhigh) when 20.7 is enough.
| Metric | GPT-5.4 nano (Xhigh) | GPT-5.6 Sol (Medium) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 20.7 | 39.2 | +89.4% GPT-5.6 Sol (Medium) is 89.4% more intelligent |
| Total AA cost (lower is better) | $331.24 | $997.39 | +201.1% GPT-5.6 Sol (Medium) is 3.0× more expensive |
| End-to-end time (lower is better) | 93.46s | 10.81s | −88.4% GPT-5.6 Sol (Medium) is 88.4% faster |
| Price per 1M tokens (in / out) | $0.20 / $1.25 | $4.00 / $20.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.6 Sol (Medium) vs GPT-5.4 nano (Xhigh): 89.4% more intelligence, 201.1% more cost to run the AA benchmark, and 88.4% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.4 nano (Xhigh) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- GPT-5.6 Sol (Medium) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
GPT-5.4 nano (Xhigh)GPT-5.6 Sol (Medium)Today's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-4-nano/gpt-5-6-sol-medium · Markdown: /api/v1/compare/gpt-5-4-nano/gpt-5-6-sol-medium?format=md · llms.txt · agent skill