Claude Fable 5.1 (Max, Default Fallback) vs Claude Sonnet 4.6 (Non-reasoning, Low)

Claude Fable 5.1 (Max, Default Fallback) vs Claude Sonnet 4.6 (Non-reasoning, Low). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude Fable 5.1 (Max, Default Fallback)Off the frontier
Intelligence
53.40
Total cost
$13129
AnthropicClaude Sonnet 4.6 (Non-reasoning, Low)Not ranked · benchmark data missing
Intelligence
23.30
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 5.1 (Max, Default Fallback)Claude Sonnet 4.6 (Non-reasoning, Low)Difference
Intelligence (higher is better)53.423.3−56.4% Claude Sonnet 4.6 (No… is 56.4% less intelligent
Total AA cost (lower is better)$13,128.86Not reported— not comparable
End-to-end time (lower is better)224.30s11.12s−95.0% Claude Sonnet 4.6 (No… is 95.0% faster
Price per 1M tokens (in / out)$10.0 / $50.0$3.00 / $15.0
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Fable 5.1 (Max, Default Fallback): what beats itClaude Sonnet 4.6 (Non-reasoning, Low): 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-5-1/claude-sonnet-4-6-non-reasoning-low-effort · Markdown: /api/v1/compare/claude-fable-5-1/claude-sonnet-4-6-non-reasoning-low-effort?format=md · llms.txt · agent skill