Claude Opus 4.5 (Reasoning) vs o3-mini (High)

Claude Opus 4.5 (Reasoning) 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 4.5 (Reasoning)Not ranked · benchmark data missing
Intelligence
29.10
Total cost
-
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 4.5 (Reasoning)o3-mini (High)Difference
Intelligence (higher is better)29.111.0−62.2% o3-mini (High) is 62.2% less intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)24.17s17.67s−26.9% o3-mini (High) is 26.9% faster
Price per 1M tokens (in / out)$5.00 / $25.0$1.10 / $4.40
Input modalitiesText, ImageText
Open this matchup in the interactive pickerClaude Opus 4.5 (Reasoning): 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-4-5-thinking/o3-mini-high · Markdown: /api/v1/compare/claude-opus-4-5-thinking/o3-mini-high?format=md · llms.txt · agent skill