GPT-5.6 Luna (Xhigh) vs Ministral 3 3B
Which is better for the money: GPT-5.6 Luna (Xhigh) by OpenAI or Ministral 3 3B by Mistral? 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-5.6 Luna (Xhigh) scores 29.8 points higher (34.6 vs 4.8) but costs 15× as much to run the benchmark ($179 vs $12.2; mid-range vs budget cost classes). They are not alternatives at one budget: pick GPT-5.6 Luna (Xhigh) when you need intelligence above 4.8, and Ministral 3 3B when 4.8 is enough.
| Metric | GPT-5.6 Luna (Xhigh) | Ministral 3 3B | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.6 | 4.8 | −86.1% Ministral 3 3B is 86.1% less intelligent |
| Total AA cost (lower is better) | $179.33 | $12.23 | −93.2% Ministral 3 3B is 93.2% cheaper |
| End-to-end time (lower is better) | 45.86s | 3.32s | −92.8% Ministral 3 3B is 92.8% faster |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.10 / $0.10 | |
| Input modalities | Text, Image | Text, Image |
Ministral 3 3B vs GPT-5.6 Luna (Xhigh): 86.1% less intelligence, 93.2% less cost to run the AA benchmark, and 92.8% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Terra (Medium) scores 41.30 for $175.
- Ministral 3 3B is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
GPT-5.6 Luna (Xhigh)Ministral 3 3BToday's Pareto frontierOpen-weights 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/ministral-3-3b · Markdown: /api/v1/compare/gpt-5-6-luna-xhigh/ministral-3-3b?format=md · llms.txt · agent skill