Claude Fable 5.1 (High, Default Fallback) vs Muse Glimmer (High)
Which is better for the money: Claude Fable 5.1 (High, Default Fallback) by Anthropic or Muse Glimmer (High) 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 (High, Default Fallbac… scores 33.7 points higher (51.2 vs 17.5) but costs 36× as much to run the benchmark ($5242 vs $146; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Claude Fable 5.1 (High, Default Fallbac… when you need intelligence above 17.5, and Muse Glimmer (High) when 17.5 is enough.
| Metric | Claude Fable 5.1 (High, Default Fallback) | Muse Glimmer (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 51.2 | 17.5 | −65.8% Muse Glimmer (High) is 65.8% less intelligent |
| Total AA cost (lower is better) | $5,241.59 | $145.77 | −97.2% Muse Glimmer (High) is 97.2% cheaper |
| End-to-end time (lower is better) | 26.71s | 25.20s | −5.7% Muse Glimmer (High) is 5.7% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $0.30 / $1.20 | |
| Input modalities | Text, Image | Text, Image |
Muse Glimmer (High) vs Claude Fable 5.1 (High, Default Fallback): 65.8% less intelligence, 97.2% less cost to run the AA benchmark, and 5.7% faster end-to-end.
Today's Pareto frontier
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.
- Muse Glimmer (High) is off the frontier: at the same or lower cost, GPT-6 Luna (Max) scores 38.10 for $122.
Claude Fable 5.1 (High, Default Fallback)Muse Glimmer (High)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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