Claude Sonnet 5.5 (High, Default Fallback) vs Mistral Small 4 (Reasoning)
Which is better for the money: Claude Sonnet 5.5 (High, Default Fallback) by Anthropic or Mistral Small 4 (Reasoning) by Mistral? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Depends on your budget
Claude Sonnet 5.5 (High, Default Fallba… scores 35.5 points higher (46.8 vs 11.3) but costs 24× as much to run the benchmark ($1027 vs $42.5; premium vs budget cost classes). They are not alternatives at one budget: pick Claude Sonnet 5.5 (High, Default Fallba… when you need intelligence above 11.3, and Mistral Small 4 (Reasoning) when 11.3 is enough.
| Metric | Claude Sonnet 5.5 (High, Default Fallback) | Mistral Small 4 (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 46.8 | 11.3 | −75.9% Mistral Small 4 (Reas… is 75.9% less intelligent |
| Total AA cost (lower is better) | $1,027.40 | $42.50 | −95.9% Mistral Small 4 (Reas… is 95.9% cheaper |
| End-to-end time (lower is better) | 14.89s | 14.50s | −2.6% Mistral Small 4 (Reas… is 2.6% faster |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $0.15 / $0.60 | |
| Input modalities | Text, Image | Text, Image |
Mistral Small 4 (Reasoning) vs Claude Sonnet 5.5 (High, Default Fallback): 75.9% less intelligence, 95.9% less cost to run the AA benchmark, and 2.6% faster end-to-end.
Against the frontier
- Claude Sonnet 5.5 (High, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- Mistral Small 4 (Reasoning) is off the frontier: at the same or lower cost, GPT-6 Luna (Medium) scores 29.90 for $31.2.
Compare something else
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-sonnet-5-5-high/mistral-small-4 · Markdown: /api/v1/compare/claude-sonnet-5-5-high/mistral-small-4?format=md · llms.txt · agent skill