Mistral Small 3.1 vs Solar Pro 3
Which is better for the money: Mistral Small 3.1 by Mistral or Solar Pro 3 by Upstage? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
Solar Pro 3 scores 0.7 points higher (7.8 vs 7.1) but costs 5.7× as much to run the benchmark ($159 vs $27.8; mid-range vs budget cost classes). They are not alternatives at one budget: pick Solar Pro 3 when you need intelligence above 7.1, and Mistral Small 3.1 when 7.1 is enough.
| Metric | Mistral Small 3.1 | Solar Pro 3 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 7.1 | 7.8 | +9.9% Solar Pro 3 is 9.9% more intelligent |
| Total AA cost (lower is better) | $27.82 | $159.22 | +472.3% Solar Pro 3 is 5.7× more expensive |
| End-to-end time (lower is better) | 11.78s | 18.89s | +60.4% Solar Pro 3 is 60.4% slower |
| Price per 1M tokens (in / out) | $0.08 / $0.14 | $0.15 / $0.60 | |
| Input modalities | Text, Image | Text |
Solar Pro 3 vs Mistral Small 3.1: 9.9% more intelligence, 472.3% more cost to run the AA benchmark, and 60.4% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Mistral Small 3.1 is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
- Solar Pro 3 is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
Mistral Small 3.1Solar Pro 3Today'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/mistral-small-3-1/solar-pro-3 · Markdown: /api/v1/compare/mistral-small-3-1/solar-pro-3?format=md · llms.txt · agent skill