Claude Fable 5.1 (High, Default Fallback) vs GPT-6.1 Sol (Low)
Which is better for the money: Claude Fable 5.1 (High, Default Fallback) by Anthropic or GPT-6.1 Sol (Low) by OpenAI? 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 9.1 points higher (51.2 vs 42.1) but costs 21× as much to run the benchmark ($5242 vs $250; 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 42.1, and GPT-6.1 Sol (Low) when 42.1 is enough.
| Metric | Claude Fable 5.1 (High, Default Fallback) | GPT-6.1 Sol (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 51.2 | 42.1 | −17.8% GPT-6.1 Sol (Low) is 17.8% less intelligent |
| Total AA cost (lower is better) | $5,241.59 | $250.48 | −95.2% GPT-6.1 Sol (Low) is 95.2% cheaper |
| End-to-end time (lower is better) | 28.41s | 12.91s | −54.6% GPT-6.1 Sol (Low) is 54.6% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6.1 Sol (Low) vs Claude Fable 5.1 (High, Default Fallback): 17.8% less intelligence, 95.2% less cost to run the AA benchmark, and 54.6% 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.
- GPT-6.1 Sol (Low) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
Claude Fable 5.1 (High, Default Fallback)GPT-6.1 Sol (Low)Today's Pareto frontierEvery other model
Matchup
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