Claude Fable 5.1 (Medium, Default Fallback) vs GPT-5.4 mini (Xhigh)
Which is better for the money: Claude Fable 5.1 (Medium, Default Fallback) by Anthropic or GPT-5.4 mini (Xhigh) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
Claude Fable 5.1 (Medium, Default Fallb… scores 24.8 points higher (48.9 vs 24.1) but costs 2.6× as much to run the benchmark ($3983 vs $1524; flagship vs premium cost classes). Pick Claude Fable 5.1 (Medium, Default Fallb… when the extra intelligence is worth the premium, otherwise GPT-5.4 mini (Xhigh).
| Metric | Claude Fable 5.1 (Medium, Default Fallback) | GPT-5.4 mini (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 48.9 | 24.1 | −50.7% GPT-5.4 mini (Xhigh) is 50.7% less intelligent |
| Total AA cost (lower is better) | $3,983.28 | $1,524.02 | −61.7% GPT-5.4 mini (Xhigh) is 61.7% cheaper |
| End-to-end time (lower is better) | 16.18s | 108.99s | +573.6% GPT-5.4 mini (Xhigh) is 573.6% slower |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $0.75 / $4.50 | |
| Input modalities | Text, Image | Text, Image |
GPT-5.4 mini (Xhigh) vs Claude Fable 5.1 (Medium, Default Fallback): 50.7% less intelligence, 61.7% less cost to run the AA benchmark, and 573.6% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Fable 5.1 (Medium, Default Fallback) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
- GPT-5.4 mini (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Claude Fable 5.1 (Medium, Default Fallback)GPT-5.4 mini (Xhigh)Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5-1-medium/gpt-5-4-mini · Markdown: /api/v1/compare/claude-fable-5-1-medium/gpt-5-4-mini?format=md · llms.txt · agent skill