Claude 4.5 Haiku (Non-reasoning) vs Claude Fable 5.1 (Medium, Default Fallback)

Claude 4.5 Haiku (Non-reasoning) vs Claude Fable 5.1 (Medium, Default Fallback). 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 4.5 Haiku (Non-reasoning)Claude Fable 5.1 (Medium, Default Fallback)Difference
Intelligence (higher is better)15.448.9+217.5% Claude Fable 5.1 (Med… is 3.2× more intelligent
Total AA cost (lower is better)Not reported$3,983.28— not comparable
End-to-end time (lower is better)6.43s18.10s+181.5% Claude Fable 5.1 (Med… is 181.5% slower
Price per 1M tokens (in / out)$1.00 / $5.00$10.0 / $50.0
Input modalitiesText, ImageText, Image
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-4-5-haiku/claude-fable-5-1-medium · Markdown: /api/v1/compare/claude-4-5-haiku/claude-fable-5-1-medium?format=md · llms.txt · agent skill