Claude Fable 5 (Max, Opus 4.8 Fallback) vs GPT-6 Sol (Low)
Which is better for the money: Claude Fable 5 (Max, Opus 4.8 Fallback) by Anthropic or GPT-6 Sol (Low) 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 (Max, Opus 4.8 Fallback) scores 15.4 points higher (49.6 vs 34.2) but costs 42× as much to run the benchmark ($11161 vs $269; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Claude Fable 5 (Max, Opus 4.8 Fallback) when you need intelligence above 34.2, and GPT-6 Sol (Low) when 34.2 is enough.
| Metric | Claude Fable 5 (Max, Opus 4.8 Fallback) | GPT-6 Sol (Low) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 49.6 | 34.2 | −31.0% GPT-6 Sol (Low) is 31.0% less intelligent |
| Total AA cost (lower is better) | $11,160.86 | $268.73 | −97.6% GPT-6 Sol (Low) is 97.6% cheaper |
| End-to-end time (lower is better) | 85.62s | 6.10s | −92.9% GPT-6 Sol (Low) is 92.9% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Sol (Low) vs Claude Fable 5 (Max, Opus 4.8 Fallback): 31.0% less intelligence, 97.6% less cost to run the AA benchmark, and 92.9% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Fable 5 (Max, Opus 4.8 Fallback) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Max, Default Fallback) scores 57.60 for $8708.
- GPT-6 Sol (Low) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
Claude Fable 5 (Max, Opus 4.8 Fallback)GPT-6 Sol (Low)Today's Pareto frontierEvery other model
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