GPT-5 mini (High) vs GPT-6 Luna (Low)
Which is better for the money: GPT-5 mini (High) by OpenAI or GPT-6 Luna (Low) 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 (Low)
GPT-6 Luna (Low) vs GPT-5 mini (High): 28.0% more intelligence, 94.4% less cost to run the AA benchmark, and 88.8% faster end-to-end.
| Metric | GPT-5 mini (High) | GPT-6 Luna (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 16.8 | 21.5 | +28.0% GPT-6 Luna (Low) is 28.0% more intelligent |
| Total AA cost (lower is better) | $188.66 | $10.63 | −94.4% GPT-6 Luna (Low) is 94.4% cheaper |
| End-to-end time (lower is better) | 58.72s | 6.60s | −88.8% GPT-6 Luna (Low) is 88.8% 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 (Low) is on today's frontier: nothing is both smarter and cheaper.
GPT-5 mini (High)GPT-6 Luna (Low)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-low · Markdown: /api/v1/compare/gpt-5-mini/gpt-6-luna-low?format=md · llms.txt · agent skill