Claude Opus 5 (Max) vs GPT-4.5 (Preview)

Claude Opus 5 (Max) vs GPT-4.5 (Preview). 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 (Max)Off the frontier
Intelligence
50.80
Total cost
$7275
OpenAIGPT-4.5 (Preview)Not ranked · benchmark data missing
Intelligence
9.60
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 (Max)GPT-4.5 (Preview)Difference
Intelligence (higher is better)50.89.6−81.1% GPT-4.5 (Preview) is 81.1% less intelligent
Total AA cost (lower is better)$7,274.74Not reported— not comparable
End-to-end time (lower is better)63.34sNot reported— not comparable
Price per 1M tokens (in / out)$5.00 / $25.0—
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Opus 5 (Max): what beats itGPT-4.5 (Preview): 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/gpt-4-5 · Markdown: /api/v1/compare/claude-opus-5/gpt-4-5?format=md · llms.txt · agent skill