Claude Fable 5.1 (Low, Default Fallback) vs Grok 4.3 (Low)

Claude Fable 5.1 (Low, Default Fallback) vs Grok 4.3 (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 (Low, Default Fallback)Off the frontier
Intelligence
46.80
Total cost
$3158
SpaceXAIGrok 4.3 (Low)Not ranked · benchmark data missing
Intelligence
24.30
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 (Low, Default Fallback)Grok 4.3 (Low)Difference
Intelligence (higher is better)46.824.3−48.1% Grok 4.3 (Low) is 48.1% less intelligent
Total AA cost (lower is better)$3,157.66Not reported— not comparable
End-to-end time (lower is better)10.73s12.94s+20.6% Grok 4.3 (Low) is 20.6% slower
Price per 1M tokens (in / out)$10.0 / $50.0$1.25 / $2.50
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Fable 5.1 (Low, Default Fallback): what beats itGrok 4.3 (Low): what beats it
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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5-1-low/grok-4-3-low · Markdown: /api/v1/compare/claude-fable-5-1-low/grok-4-3-low?format=md · llms.txt · agent skill