Claude Fable 5.1 (Low, Default Fallback) vs Claude Fable 5.2 (Low, Default Fallback)
Which is better for the money: Claude Fable 5.1 (Low, Default Fallback) by Anthropic or Claude Fable 5.2 (Low, Default Fallback) by Anthropic? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-11-10.
Clear winner
Verdict
Pick Claude Fable 5.2 (Low, Default Fallback)
Claude Fable 5.2 (Low, Default Fallback) vs Claude Fable 5.1 (Low, Default Fallback): 39.3% more intelligence, 26.4% less cost to run the AA benchmark, and 63.2% slower end-to-end.
| Metric | Claude Fable 5.1 (Low, Default Fallback) | Claude Fable 5.2 (Low, Default Fallback) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.7 | 53.9 | +39.3% Claude Fable 5.2 (Low… is 39.3% more intelligent |
| Total AA cost (lower is better) | $3,885.94 | $2,861.78 | −26.4% Claude Fable 5.2 (Low… is 26.4% cheaper |
| End-to-end time (lower is better) | 12.58s | 20.53s | +63.2% Claude Fable 5.2 (Low… is 63.2% slower |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $8.00 / $40.0 | |
| Input modalities | Text, Image | Text, Image |
Today's Pareto frontier
Against the frontier
- Claude Fable 5.1 (Low, Default Fallback) is off the frontier: at the same or lower cost, Claude Fable 5.2 (Medium, Default Fallback) scores 56.40 for $3360.
- Claude Fable 5.2 (Low, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 54.60 for $1124.
Claude Fable 5.1 (Low, Default Fallback)Claude Fable 5.2 (Low, Default Fallback)Today's Pareto frontierEvery other model
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