GPT-5.6 Luna (High) vs GPT-6 Luna (Max)
Which is better for the money: GPT-5.6 Luna (High) by OpenAI or GPT-6 Luna (Max) by OpenAI? 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-6 Luna (Max) scores 6.0 points higher (38.1 vs 32.1) but costs 1.1× as much to run the benchmark ($122 vs $108; both mid-range class). Pick GPT-6 Luna (Max) when the extra intelligence is worth the premium, otherwise GPT-5.6 Luna (High).
| Metric | GPT-5.6 Luna (High) | GPT-6 Luna (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 32.1 | 38.1 | +18.7% GPT-6 Luna (Max) is 18.7% more intelligent |
| Total AA cost (lower is better) | $108.15 | $122.05 | +12.9% GPT-6 Luna (Max) is 12.9% more expensive |
| End-to-end time (lower is better) | 16.30s | 97.79s | +499.9% GPT-6 Luna (Max) is 499.9% slower |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Luna (Max) vs GPT-5.6 Luna (High): 18.7% more intelligence, 12.9% more cost to run the AA benchmark, and 499.9% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (High) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (High) scores 37.80 for $94.1.
- GPT-6 Luna (Max) is on today's frontier: nothing is both smarter and cheaper.
GPT-5.6 Luna (High)GPT-6 Luna (Max)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-5-6-luna-high/gpt-6-luna · Markdown: /api/v1/compare/gpt-5-6-luna-high/gpt-6-luna?format=md · llms.txt · agent skill