Claude Fable 5.1 (Max, Default Fallback) vs Gemini 3.1 Pro Preview
Which is better for the money: Claude Fable 5.1 (Max, Default Fallback) by Anthropic or Gemini 3.1 Pro Preview by Google? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Depends on your budget
Claude Fable 5.1 (Max, Default Fallback) scores 23.7 points higher (53.4 vs 29.7) but costs 6.8× as much to run the benchmark ($13129 vs $1935; 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 29.7, and Gemini 3.1 Pro Preview when 29.7 is enough.
| Metric | Claude Fable 5.1 (Max, Default Fallback) | Gemini 3.1 Pro Preview | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 53.4 | 29.7 | −44.4% Gemini 3.1 Pro Preview is 44.4% less intelligent |
| Total AA cost (lower is better) | $13,128.86 | $1,935.39 | −85.3% Gemini 3.1 Pro Preview is 85.3% cheaper |
| End-to-end time (lower is better) | 201.58s | 24.38s | −87.9% Gemini 3.1 Pro Preview is 87.9% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $2.00 / $12.0 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Gemini 3.1 Pro Preview vs Claude Fable 5.1 (Max, Default Fallback): 44.4% less intelligence, 85.3% less cost to run the AA benchmark, and 87.9% faster end-to-end.
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.
- Gemini 3.1 Pro Preview is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Compare something else
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5-1/gemini-3-1-pro-preview · Markdown: /api/v1/compare/claude-fable-5-1/gemini-3-1-pro-preview?format=md · llms.txt · agent skill