GPT-5.6 Luna (Max) vs GPT-5.6 Luna (Xhigh)
Which is better for the money: GPT-5.6 Luna (Max) by OpenAI or GPT-5.6 Luna (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
GPT-5.6 Luna (Max) scores 2.7 points higher (37.3 vs 34.6) but costs 1.8× as much to run the benchmark ($320 vs $179; both mid-range class). Pick GPT-5.6 Luna (Max) when the extra intelligence is worth the premium, otherwise GPT-5.6 Luna (Xhigh).
| Metric | GPT-5.6 Luna (Max) | GPT-5.6 Luna (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.3 | 34.6 | −7.2% GPT-5.6 Luna (Xhigh) is 7.2% less intelligent |
| Total AA cost (lower is better) | $319.93 | $179.33 | −43.9% GPT-5.6 Luna (Xhigh) is 43.9% cheaper |
| End-to-end time (lower is better) | 85.38s | 30.83s | −63.9% GPT-5.6 Luna (Xhigh) is 63.9% faster |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.20 / $1.20 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.6 Luna (Xhigh) vs GPT-5.6 Luna (Max): 7.2% less intelligence, 43.9% less cost to run the AA benchmark, and 63.9% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Max) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- GPT-5.6 Luna (Xhigh) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
GPT-5.6 Luna (Max)GPT-5.6 Luna (Xhigh)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-6-luna/gpt-5-6-luna-xhigh · Markdown: /api/v1/compare/gpt-5-6-luna/gpt-5-6-luna-xhigh?format=md · llms.txt · agent skill