Claude Opus 4.5 (Reasoning) vs Mistral Small 4 (Reasoning)

Claude Opus 4.5 (Reasoning) vs Mistral Small 4 (Reasoning). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude Opus 4.5 (Reasoning)Not ranked · benchmark data missing
Intelligence
29.10
Total cost
-
MistralMistral Small 4 (Reasoning)On the open-weights frontier
Intelligence
11.30
Total cost
$42.5
Verdict

Comparison incomplete

A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

MetricClaude Opus 4.5 (Reasoning)Mistral Small 4 (Reasoning)Difference
Intelligence (higher is better)29.111.3−61.2% Mistral Small 4 (Reas… is 61.2% less intelligent
Total AA cost (lower is better)Not reported$42.50— not comparable
End-to-end time (lower is better)25.65s14.50s−43.5% Mistral Small 4 (Reas… is 43.5% faster
Price per 1M tokens (in / out)$5.00 / $25.0$0.15 / $0.60
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Opus 4.5 (Reasoning): what beats itMistral Small 4 (Reasoning): what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-4-5-thinking/mistral-small-4 · Markdown: /api/v1/compare/claude-opus-4-5-thinking/mistral-small-4?format=md · llms.txt · agent skill