Claude Fable 5.1 (Max, Default Fallback) vs Gemini 3.5 Flash (High)

Which is better for the money: Claude Fable 5.1 (Max, Default Fallback) by Anthropic or Gemini 3.5 Flash (High) by Google? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.

Trade-off

AnthropicClaude Fable 5.1 (Max, Default Fallback)Off the frontier

Intelligence: 53.40
Total cost: $13129

GoogleGemini 3.5 Flash (High)Off the frontier

Intelligence: 32.60
Total cost: $4222

Verdict

Depends on your budget

Claude Fable 5.1 (Max, Default Fallback) scores 20.8 points higher (53.4 vs 32.6) but costs 3.1× as much to run the benchmark ($13129 vs $4222; both flagship class). They are not alternatives at one budget: pick Claude Fable 5.1 (Max, Default Fallback) when you need intelligence above 32.6, and Gemini 3.5 Flash (High) when 32.6 is enough.

Metric	Claude Fable 5.1 (Max, Default Fallback)	Gemini 3.5 Flash (High)	Difference
Intelligence (higher is better)	53.4	32.6	−39.0% Gemini 3.5 Flash (Hig… is 39.0% less intelligent
Total AA cost (lower is better)	$13,128.86	$4,222.12	−67.8% Gemini 3.5 Flash (Hig… is 67.8% cheaper
End-to-end time (lower is better)	224.39s	16.63s	−92.6% Gemini 3.5 Flash (Hig… is 92.6% faster
Price per 1M tokens (in / out)	$10.0 / $50.0	$1.50 / $9.00
Input modalities	Text, Image	Text, Image, Speech, Video

Gemini 3.5 Flash (High) vs Claude Fable 5.1 (Max, Default Fallback): 39.0% less intelligence, 67.8% less cost to run the AA benchmark, and 92.6% faster end-to-end.

Open this matchup in the interactive picker Claude Fable 5.1 (Max, Default Fallback): what beats it Gemini 3.5 Flash (High): what beats it

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.
Gemini 3.5 Flash (High) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.

Claude Fable 5.1 (Max, Default Fallback)Gemini 3.5 Flash (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/gemini-3-5-flash · Markdown: /api/v1/compare/claude-fable-5-1/gemini-3-5-flash?format=md · llms.txt · agent skill