Claude Fable 5.1 (High, Default Fallback) vs Claude Fable 5.1 (Low, Default Fallback)
Which is better for the money: Claude Fable 5.1 (High, Default Fallback) by Anthropic or Claude Fable 5.1 (Low, Default Fallback) by Anthropic? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Depends on your budget
Claude Fable 5.1 (High, Default Fallbac… scores 4.4 points higher (51.2 vs 46.8) but costs 1.7× as much to run the benchmark ($5242 vs $3158; both flagship class). Pick Claude Fable 5.1 (High, Default Fallbac… when the extra intelligence is worth the premium, otherwise Claude Fable 5.1 (Low, Default Fallback).
| Metric | Claude Fable 5.1 (High, Default Fallback) | Claude Fable 5.1 (Low, Default Fallback) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 51.2 | 46.8 | −8.6% Claude Fable 5.1 (Low… is 8.6% less intelligent |
| Total AA cost (lower is better) | $5,241.59 | $3,157.66 | −39.8% Claude Fable 5.1 (Low… is 39.8% cheaper |
| End-to-end time (lower is better) | 25.53s | 10.89s | −57.3% Claude Fable 5.1 (Low… is 57.3% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $10.0 / $50.0 | |
| Input modalities | Text, Image | Text, Image |
Claude Fable 5.1 (Low, Default Fallback) vs Claude Fable 5.1 (High, Default Fallback): 8.6% less intelligence, 39.8% less cost to run the AA benchmark, and 57.3% faster end-to-end.
Against the frontier
- Claude Fable 5.1 (High, Default Fallback) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- Claude Fable 5.1 (Low, Default Fallback) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
Compare something else
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5-1-high/claude-fable-5-1-low · Markdown: /api/v1/compare/claude-fable-5-1-high/claude-fable-5-1-low?format=md · llms.txt · agent skill