Claude Fable 5.1 (Low, Default Fallback) vs GPT-6 Sol (High)
Which is better for the money: Claude Fable 5.1 (Low, Default Fallback) by Anthropic or GPT-6 Sol (High) 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 (Low, Default Fallback) scores 4.4 points higher (46.8 vs 42.4) but costs 5.2× as much to run the benchmark ($3158 vs $605; flagship vs premium cost classes). They are not alternatives at one budget: pick Claude Fable 5.1 (Low, Default Fallback) when you need intelligence above 42.4, and GPT-6 Sol (High) when 42.4 is enough.
| Metric | Claude Fable 5.1 (Low, Default Fallback) | GPT-6 Sol (High) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 46.8 | 42.4 | −9.4% GPT-6 Sol (High) is 9.4% less intelligent |
| Total AA cost (lower is better) | $3,157.66 | $604.52 | −80.9% GPT-6 Sol (High) is 80.9% cheaper |
| End-to-end time (lower is better) | 10.92s | 22.47s | +105.8% GPT-6 Sol (High) is 105.8% slower |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
GPT-6 Sol (High) vs Claude Fable 5.1 (Low, Default Fallback): 9.4% less intelligence, 80.9% less cost to run the AA benchmark, and 105.8% 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.
- GPT-6 Sol (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
Claude Fable 5.1 (Low, Default Fallback)GPT-6 Sol (High)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-low/gpt-6-sol-high · Markdown: /api/v1/compare/claude-fable-5-1-low/gpt-6-sol-high?format=md · llms.txt · agent skill