Claude Fable 5 (Max, Opus 4.8 Fallback) vs Step 3.5 Flash 2603

Claude Fable 5 (Max, Opus 4.8 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 Fable 5 (Max, Opus 4.8 Fallback)Step 3.5 Flash 2603Difference
Intelligence (higher is better)49.617.0−65.7% Step 3.5 Flash 2603 is 65.7% less intelligent
Total AA cost (lower is better)$11,160.86Not reported— not comparable
End-to-end time (lower is better)77.70s20.55s−73.6% Step 3.5 Flash 2603 is 73.6% faster
Price per 1M tokens (in / out)$10.0 / $50.0$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-fable-5/step-3-5-flash · Markdown: /api/v1/compare/claude-fable-5/step-3-5-flash?format=md · llms.txt · agent skill