GPT-5 mini (High) vs GPT-6 Luna (Xhigh)
Which is better for the money: GPT-5 mini (High) by OpenAI or GPT-6 Luna (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Clear winner
Verdict
Pick GPT-6 Luna (Xhigh)
GPT-6 Luna (Xhigh) vs GPT-5 mini (High): 106.0% more intelligence, 64.6% less cost to run the AA benchmark, and 63.8% faster end-to-end.
| Metric | GPT-5 mini (High) | GPT-6 Luna (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 16.8 | 34.6 | +106.0% GPT-6 Luna (Xhigh) is 2.1× more intelligent |
| Total AA cost (lower is better) | $188.66 | $66.81 | −64.6% GPT-6 Luna (Xhigh) is 64.6% cheaper |
| End-to-end time (lower is better) | 58.72s | 21.27s | −63.8% GPT-6 Luna (Xhigh) is 63.8% faster |
| Price per 1M tokens (in / out) | $0.25 / $2.00 | $0.10 / $0.50 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5 mini (High) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
- GPT-6 Luna (Xhigh) is on today's frontier: nothing is both smarter and cheaper.
GPT-5 mini (High)GPT-6 Luna (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-5-mini/gpt-6-luna-xhigh · Markdown: /api/v1/compare/gpt-5-mini/gpt-6-luna-xhigh?format=md · llms.txt · agent skill