GPT-5.6 Luna (Medium) vs Mistral Small 3.2
Which is better for the money: GPT-5.6 Luna (Medium) by OpenAI or Mistral Small 3.2 by Mistral? 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 (Medium)
Mistral Small 3.2 vs GPT-5.6 Luna (Medium): 72.0% less intelligence, 174.8% more cost to run the AA benchmark, and 48.5% slower end-to-end.
| Metric | GPT-5.6 Luna (Medium) | Mistral Small 3.2 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 25.0 | 7.0 | −72.0% Mistral Small 3.2 is 72.0% less intelligent |
| Total AA cost (lower is better) | $44.32 | $121.78 | +174.8% Mistral Small 3.2 is 2.7× more expensive |
| End-to-end time (lower is better) | 6.43s | 9.55s | +48.5% Mistral Small 3.2 is 48.5% slower |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $0.07 / $0.20 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Medium) is off the frontier: at the same or lower cost, GPT-6 Luna (Medium) scores 29.90 for $31.2.
- Mistral Small 3.2 is off the frontier: at the same or lower cost, MiMo-V2.6-Flash scores 37.90 for $110.
GPT-5.6 Luna (Medium)Mistral Small 3.2Today'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-medium/mistral-small-3-2 · Markdown: /api/v1/compare/gpt-5-6-luna-medium/mistral-small-3-2?format=md · llms.txt · agent skill