Claude Fable 5 (Max, Opus 4.8 Fallback) vs GPT-5.2 Codex (Xhigh)

Claude Fable 5 (Max, Opus 4.8 Fallback) vs GPT-5.2 Codex (Xhigh). 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 Fable 5 (Max, Opus 4.8 Fallback)GPT-5.2 Codex (Xhigh)Difference
Intelligence (higher is better)49.628.5−42.5% GPT-5.2 Codex (Xhigh) is 42.5% less intelligent
Total AA cost (lower is better)$11,160.86Not reported— not comparable
End-to-end time (lower is better)77.70s135.26s+74.1% GPT-5.2 Codex (Xhigh) is 74.1% slower
Price per 1M tokens (in / out)$10.0 / $50.0$1.75 / $14.0
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-fable-5/gpt-5-2-codex · Markdown: /api/v1/compare/claude-fable-5/gpt-5-2-codex?format=md · llms.txt · agent skill