GPT-6 Luna (Medium) vs GPT-6 Sol (Xhigh)
Which is better for the money: GPT-6 Luna (Medium) by OpenAI or GPT-6 Sol (Xhigh) 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-6 Sol (Xhigh) scores 14.3 points higher (44.2 vs 29.9) but costs 27× as much to run the benchmark ($855 vs $31.2; premium vs budget cost classes). They are not alternatives at one budget: pick GPT-6 Sol (Xhigh) when you need intelligence above 29.9, and GPT-6 Luna (Medium) when 29.9 is enough.
| Metric | GPT-6 Luna (Medium) | GPT-6 Sol (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 29.9 | 44.2 | +47.8% GPT-6 Sol (Xhigh) is 47.8% more intelligent |
| Total AA cost (lower is better) | $31.17 | $854.60 | +2641.7% GPT-6 Sol (Xhigh) is 27× more expensive |
| End-to-end time (lower is better) | Not reported | 46.01s | — not comparable |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Sol (Xhigh) vs GPT-6 Luna (Medium): 47.8% more intelligence, 2641.7% more cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (Medium) is on today's frontier: nothing is both smarter and cheaper.
- GPT-6 Sol (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
GPT-6 Luna (Medium)GPT-6 Sol (Xhigh)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-6-luna-medium/gpt-6-sol-xhigh · Markdown: /api/v1/compare/gpt-6-luna-medium/gpt-6-sol-xhigh?format=md · llms.txt · agent skill