Mistral Small 4 (Reasoning) vs Solar Pro 4
Which is better for the money: Mistral Small 4 (Reasoning) by Mistral or Solar Pro 4 by Upstage? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
Solar Pro 4 scores 15.3 points higher (26.6 vs 11.3) but costs 17× as much to run the benchmark ($737 vs $42.5; premium vs budget cost classes). They are not alternatives at one budget: pick Solar Pro 4 when you need intelligence above 11.3, and Mistral Small 4 (Reasoning) when 11.3 is enough.
| Metric | Mistral Small 4 (Reasoning) | Solar Pro 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 11.3 | 26.6 | +135.4% Solar Pro 4 is 2.4× more intelligent |
| Total AA cost (lower is better) | $42.50 | $736.82 | +1633.7% Solar Pro 4 is 17× more expensive |
| End-to-end time (lower is better) | 14.50s | Not reported | — not comparable |
| Price per 1M tokens (in / out) | $0.15 / $0.60 | $0.30 / $1.20 | |
| Input modalities | Text, Image | Text |
Solar Pro 4 vs Mistral Small 4 (Reasoning): 135.4% more intelligence, 1633.7% more cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- Mistral Small 4 (Reasoning) is off the frontier: at the same or lower cost, GPT-6 Luna (Medium) scores 29.90 for $31.2.
- Solar Pro 4 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Mistral Small 4 (Reasoning)Solar Pro 4Today'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-4/solar-pro4 · Markdown: /api/v1/compare/mistral-small-4/solar-pro4?format=md · llms.txt · agent skill