Claude Fable 5 (Max, Opus 4.8 Fallback) vs Claude Opus 4.5 (Reasoning)
Claude Fable 5 (Max, Opus 4.8 Fallback) vs Claude Opus 4.5 (Reasoning). 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.
| Metric | Claude Fable 5 (Max, Opus 4.8 Fallback) | Claude Opus 4.5 (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 49.6 | 29.1 | −41.3% Claude Opus 4.5 (Reas… is 41.3% less intelligent |
| Total AA cost (lower is better) | $11,160.86 | Not reported | — not comparable |
| End-to-end time (lower is better) | 85.37s | 22.98s | −73.1% Claude Opus 4.5 (Reas… is 73.1% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $5.00 / $25.0 | |
| Input modalities | Text, Image | Text, Image |
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5/claude-opus-4-5-thinking · Markdown: /api/v1/compare/claude-fable-5/claude-opus-4-5-thinking?format=md · llms.txt · agent skill