Claude Opus 5.5 (High, Default Fallback) vs Step 3.5 Flash 2603
Claude Opus 5.5 (High, 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.
| Metric | Claude Opus 5.5 (High, Default Fallback) | Step 3.5 Flash 2603 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 53.6 | 17.0 | −68.3% Step 3.5 Flash 2603 is 68.3% less intelligent |
| Total AA cost (lower is better) | $2,172.43 | Not reported | — not comparable |
| End-to-end time (lower is better) | 33.58s | 20.25s | −39.7% Step 3.5 Flash 2603 is 39.7% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $0.10 / $0.30 | |
| Input modalities | Text, Image | Text |
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5-high/step-3-5-flash · Markdown: /api/v1/compare/claude-opus-5-5-high/step-3-5-flash?format=md · llms.txt · agent skill