Claude Fable 5.1 (Max, Default Fallback) vs GPT-6 Sol (Max)
Which is better for the money: Claude Fable 5.1 (Max, Default Fallback) by Anthropic or GPT-6 Sol (Max) 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 (Max, Default Fallback) scores 5.8 points higher (53.4 vs 47.6) but costs 8.5× as much to run the benchmark ($13129 vs $1536; flagship vs premium cost classes). They are not alternatives at one budget: pick Claude Fable 5.1 (Max, Default Fallback) when you need intelligence above 47.6, and GPT-6 Sol (Max) when 47.6 is enough.
| Metric | Claude Fable 5.1 (Max, Default Fallback) | GPT-6 Sol (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 53.4 | 47.6 | −10.9% GPT-6 Sol (Max) is 10.9% less intelligent |
| Total AA cost (lower is better) | $13,128.86 | $1,535.80 | −88.3% GPT-6 Sol (Max) is 88.3% cheaper |
| End-to-end time (lower is better) | 224.39s | 124.96s | −44.3% GPT-6 Sol (Max) is 44.3% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Sol (Max) vs Claude Fable 5.1 (Max, Default Fallback): 10.9% less intelligence, 88.3% less cost to run the AA benchmark, and 44.3% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Fable 5.1 (Max, Default 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 (Max) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Claude Fable 5.1 (Max, Default Fallback)GPT-6 Sol (Max)Today's Pareto frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5-1/gpt-6-sol · Markdown: /api/v1/compare/claude-fable-5-1/gpt-6-sol?format=md · llms.txt · agent skill