Claude Opus 5.5 (High, Default Fallback) vs GPT-5.2 (Medium)

Claude Opus 5.5 (High, Default Fallback) vs GPT-5.2 (Medium). 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
OpenAIGPT-5.2 (Medium)Not ranked · benchmark data missing
Intelligence
26.50
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)GPT-5.2 (Medium)Difference
Intelligence (higher is better)53.626.5−50.6% GPT-5.2 (Medium) is 50.6% less intelligent
Total AA cost (lower is better)$2,172.43Not reported— not comparable
End-to-end time (lower is better)33.81sNot reported— not comparable
Price per 1M tokens (in / out)$4.00 / $20.0$1.75 / $14.0
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Opus 5.5 (High, Default Fallback): what beats itGPT-5.2 (Medium): 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-high/gpt-5-2-medium · Markdown: /api/v1/compare/claude-opus-5-5-high/gpt-5-2-medium?format=md · llms.txt · agent skill