GPT-5.6 Luna (Xhigh) vs GPT-5 mini (High)
Which is better for the money: GPT-5.6 Luna (Xhigh) by OpenAI or GPT-5 mini (High) 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-5.6 Luna (Xhigh)
GPT-5 mini (High) vs GPT-5.6 Luna (Xhigh): 51.4% less intelligence, 5.2% more cost to run the AA benchmark, and 80.7% slower end-to-end.
| Metric | GPT-5.6 Luna (Xhigh) | GPT-5 mini (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.6 | 16.8 | −51.4% GPT-5 mini (High) is 51.4% less intelligent |
| Total AA cost (lower is better) | $179.33 | $188.66 | +5.2% GPT-5 mini (High) is 5.2% more expensive |
| End-to-end time (lower is better) | 40.39s | 73.00s | +80.7% GPT-5 mini (High) is 80.7% slower |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.25 / $2.00 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- 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 mini (High) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
GPT-5.6 Luna (Xhigh)GPT-5 mini (High)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-xhigh/gpt-5-mini · Markdown: /api/v1/compare/gpt-5-6-luna-xhigh/gpt-5-mini?format=md · llms.txt · agent skill