Claude Opus 5 (Medium) vs o3

Claude Opus 5 (Medium) vs o3. 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 (Medium)Off the frontier
Intelligence
44.80
Total cost
$2732
OpenAIo3Not ranked · benchmark data missing
Intelligence
20.20
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 (Medium)o3Difference
Intelligence (higher is better)44.820.2−54.9% o3 is 54.9% less intelligent
Total AA cost (lower is better)$2,731.91Not reported— not comparable
End-to-end time (lower is better)13.14s11.00s−16.3% o3 is 16.3% faster
Price per 1M tokens (in / out)$5.00 / $25.0$2.00 / $8.00
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Opus 5 (Medium): what beats ito3: 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-medium/o3 · Markdown: /api/v1/compare/claude-opus-5-medium/o3?format=md · llms.txt · agent skill