Claude 4.5 Sonnet (Reasoning) vs Claude Fable 5.2 (High, Default Fallback)

Claude 4.5 Sonnet (Reasoning) vs Claude Fable 5.2 (High, Default Fallback). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude 4.5 Sonnet (Reasoning)Not ranked · benchmark data missing
Intelligence
-
Total cost
-
AnthropicClaude Fable 5.2 (High, Default Fallback)On the frontier
Intelligence
61.80
Total cost
$7106
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 4.5 Sonnet (Reasoning)Claude Fable 5.2 (High, Default Fallback)Difference
Intelligence (higher is better)Not reported61.8— not comparable
Total AA cost (lower is better)Not reported$7,105.77— not comparable
End-to-end time (lower is better)27.91s36.05s+29.2% Claude Fable 5.2 (Hig… is 29.2% slower
Price per 1M tokens (in / out)$3.00 / $15.0$8.00 / $40.0
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude 4.5 Sonnet (Reasoning): what beats itClaude Fable 5.2 (High, Default Fallback): 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-4-5-sonnet-thinking/claude-fable-5-2-high · Markdown: /api/v1/compare/claude-4-5-sonnet-thinking/claude-fable-5-2-high?format=md · llms.txt · agent skill