Claude Fable 5.1 (Low, Default Fallback) vs Muse Spark 1.2 (Xhigh)
Which is better for the money: Claude Fable 5.1 (Low, Default Fallback) by Anthropic or Muse Spark 1.2 (Xhigh) by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
Claude Fable 5.1 (Low, Default Fallback) scores 7.2 points higher (46.8 vs 39.6) but costs 2.3× as much to run the benchmark ($3158 vs $1385; flagship vs premium cost classes). Pick Claude Fable 5.1 (Low, Default Fallback) when the extra intelligence is worth the premium, otherwise Muse Spark 1.2 (Xhigh).
| Metric | Claude Fable 5.1 (Low, Default Fallback) | Muse Spark 1.2 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 46.8 | 39.6 | −15.4% Muse Spark 1.2 (Xhigh) is 15.4% less intelligent |
| Total AA cost (lower is better) | $3,157.66 | $1,385.40 | −56.1% Muse Spark 1.2 (Xhigh) is 56.1% cheaper |
| End-to-end time (lower is better) | 10.73s | 21.43s | +99.7% Muse Spark 1.2 (Xhigh) is 99.7% slower |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Muse Spark 1.2 (Xhigh) vs Claude Fable 5.1 (Low, Default Fallback): 15.4% less intelligence, 56.1% less cost to run the AA benchmark, and 99.7% slower end-to-end.
Today's Pareto frontier
Against the frontier
- 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.
- Muse Spark 1.2 (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 (Low, Default Fallback)Muse Spark 1.2 (Xhigh)Today's Pareto frontierEvery other model
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