GPT-5.6 Luna (Max) vs GPT-6 Luna (Max)
Which is better for the money: GPT-5.6 Luna (Max) by OpenAI or GPT-6 Luna (Max) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick GPT-6 Luna (Max)
GPT-6 Luna (Max) vs GPT-5.6 Luna (Max): 2.1% more intelligence, 61.9% less cost to run the AA benchmark, and 20.9% faster end-to-end.
| Metric | GPT-5.6 Luna (Max) | GPT-6 Luna (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 37.3 | 38.1 | +2.1% GPT-6 Luna (Max) is 2.1% more intelligent |
| Total AA cost (lower is better) | $319.93 | $122.05 | −61.9% GPT-6 Luna (Max) is 61.9% cheaper |
| End-to-end time (lower is better) | 114.06s | 90.27s | −20.9% GPT-6 Luna (Max) is 20.9% faster |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
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-6 Luna (Max) is on today's frontier: nothing is both smarter and cheaper.
GPT-5.6 Luna (Max)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/gpt-6-luna · Markdown: /api/v1/compare/gpt-5-6-luna/gpt-6-luna?format=md · llms.txt · agent skill