Claude Opus 5.5 (Max, Default Fallback) vs Step 3.5 Flash 2603

Claude Opus 5.5 (Max, Default Fallback) vs Step 3.5 Flash 2603. A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

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 (Max, Default Fallback)Step 3.5 Flash 2603Difference
Intelligence (higher is better)57.617.0−70.5% Step 3.5 Flash 2603 is 70.5% less intelligent
Total AA cost (lower is better)$8,708.20Not reported— not comparable
End-to-end time (lower is better)609.14s20.55s−96.6% Step 3.5 Flash 2603 is 96.6% faster
Price per 1M tokens (in / out)$4.00 / $20.0$0.10 / $0.30
Input modalitiesText, ImageText
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/step-3-5-flash · Markdown: /api/v1/compare/claude-opus-5-5/step-3-5-flash?format=md · llms.txt · agent skill