Claude Opus 5.5 (Max, Default Fallback) vs Magistral Small 1.2

Claude Opus 5.5 (Max, Default Fallback) vs Magistral Small 1.2. A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude Opus 5.5 (Max, Default Fallback)On the frontier
Intelligence
57.60
Total cost
$8708
MistralMagistral Small 1.2Not ranked · benchmark data missing
Intelligence
8.60
Total cost
-
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 5.5 (Max, Default Fallback)Magistral Small 1.2Difference
Intelligence (higher is better)57.68.6−85.1% Magistral Small 1.2 is 85.1% less intelligent
Total AA cost (lower is better)$8,708.20Not reported— not comparable
End-to-end time (lower is better)626.13s34.22s−94.5% Magistral Small 1.2 is 94.5% faster
Price per 1M tokens (in / out)$4.00 / $20.0$0.50 / $1.50
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Opus 5.5 (Max, Default Fallback): what beats itMagistral Small 1.2: what beats it
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5/magistral-small-2509 · Markdown: /api/v1/compare/claude-opus-5-5/magistral-small-2509?format=md · llms.txt · agent skill