GPT-6 Luna (Medium) vs Mistral Large 4 Preview
Which is better for the money: GPT-6 Luna (Medium) by OpenAI or Mistral Large 4 Preview by Mistral? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-30.
Trade-off
Verdict
Depends on your budget
Mistral Large 4 Preview scores 7.0 points higher (25.3 vs 18.3) but costs 74× as much to run the benchmark ($2923 vs $39.5; flagship vs budget cost classes). They are not alternatives at one budget: pick Mistral Large 4 Preview when you need intelligence above 18.3, and GPT-6 Luna (Medium) when 18.3 is enough.
| Metric | GPT-6 Luna (Medium) | Mistral Large 4 Preview | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 18.3 | 25.3 | +38.3% Mistral Large 4 Previ… is 38.3% more intelligent |
| Total AA cost (lower is better) | $39.55 | $2,923.39 | +7291.6% Mistral Large 4 Previ… is 74× more expensive |
| End-to-end time (lower is better) | Not reported | 24.42s | — not comparable |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $0.70 / $2.10 | |
| Input modalities | Text, Image | Text, Image |
Mistral Large 4 Preview vs GPT-6 Luna (Medium): 38.3% more intelligence, 7291.6% more cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (Medium) is on today's frontier: nothing is both smarter and cheaper.
- Mistral Large 4 Preview is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 54.50 for $1124.
GPT-6 Luna (Medium)Mistral Large 4 PreviewToday'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-6-luna-medium/mistral-large-4-preview · Markdown: /api/v1/compare/gpt-6-luna-medium/mistral-large-4-preview?format=md · llms.txt · agent skill