Claude Fable 5.2 (Medium, Default Fallback) vs Claude Sonnet 5 (Medium)

Claude Fable 5.2 (Medium, Default Fallback) vs Claude Sonnet 5 (Medium). 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 5.2 (Medium, Default Fallback)Claude Sonnet 5 (Medium)Difference
Intelligence (higher is better)56.4Not reported— not comparable
Total AA cost (lower is better)$3,359.66Not reported— not comparable
End-to-end time (lower is better)28.35s9.07s−68.0% Claude Sonnet 5 (Medi… is 68.0% faster
Price per 1M tokens (in / out)$8.00 / $40.0$2.00 / $10.0
Input modalitiesText, ImageText, Image
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5-2-medium/claude-sonnet-5-medium · Markdown: /api/v1/compare/claude-fable-5-2-medium/claude-sonnet-5-medium?format=md · llms.txt · agent skill