Claude Fable 5 (Max, Opus 4.8 Fallback) vs o3

Claude Fable 5 (Max, Opus 4.8 Fallback) vs o3. 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 (Max, Opus 4.8 Fallback)Off the frontier
Intelligence
49.60
Total cost
$11161
OpenAIo3Not ranked · benchmark data missing
Intelligence
20.20
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 (Max, Opus 4.8 Fallback)o3Difference
Intelligence (higher is better)49.620.2−59.3% o3 is 59.3% less intelligent
Total AA cost (lower is better)$11,160.86Not reported— not comparable
End-to-end time (lower is better)77.70s10.44s−86.6% o3 is 86.6% faster
Price per 1M tokens (in / out)$10.0 / $50.0$2.00 / $8.00
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Fable 5 (Max, Opus 4.8 Fallback): what beats ito3: 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/o3 · Markdown: /api/v1/compare/claude-fable-5/o3?format=md · llms.txt · agent skill