Claude Fable 5.2 (Low, Default Fallback) vs Claude Opus 5 (Medium)

Claude Fable 5.2 (Low, Default Fallback) vs Claude Opus 5 (Medium). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude Fable 5.2 (Low, Default Fallback)Off the frontier
Intelligence
53.90
Total cost
$2862
AnthropicClaude Opus 5 (Medium)Not ranked · benchmark data missing
Intelligence
-
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 Fable 5.2 (Low, Default Fallback)Claude Opus 5 (Medium)Difference
Intelligence (higher is better)53.9Not reported— not comparable
Total AA cost (lower is better)$2,861.78Not reported— not comparable
End-to-end time (lower is better)24.94s14.87s−40.4% Claude Opus 5 (Medium) is 40.4% faster
Price per 1M tokens (in / out)$8.00 / $40.0$5.00 / $25.0
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Fable 5.2 (Low, Default Fallback): what beats itClaude Opus 5 (Medium): what beats it
Matchup

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