Claude Opus 5.5 (High, Default Fallback) vs o3-mini (High)

Claude Opus 5.5 (High, Default Fallback) vs o3-mini (High). 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 (High, Default Fallback)On the frontier
Intelligence
53.60
Total cost
$2172
OpenAIo3-mini (High)Not ranked · benchmark data missing
Intelligence
11.00
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 (High, Default Fallback)o3-mini (High)Difference
Intelligence (higher is better)53.611.0−79.5% o3-mini (High) is 79.5% less intelligent
Total AA cost (lower is better)$2,172.43Not reported— not comparable
End-to-end time (lower is better)33.81s16.18s−52.1% o3-mini (High) is 52.1% faster
Price per 1M tokens (in / out)$4.00 / $20.0$1.10 / $4.40
Input modalitiesText, ImageText
Open this matchup in the interactive pickerClaude Opus 5.5 (High, Default Fallback): what beats ito3-mini (High): 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-5-5-high/o3-mini-high · Markdown: /api/v1/compare/claude-opus-5-5-high/o3-mini-high?format=md · llms.txt · agent skill