Claude 4.5 Sonnet (Reasoning) vs Gemini 2.5 Flash (Reasoning)

Claude 4.5 Sonnet (Reasoning) vs Gemini 2.5 Flash (Reasoning). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

Verdict

Comparison incomplete

A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

MetricClaude 4.5 Sonnet (Reasoning)Gemini 2.5 Flash (Reasoning)Difference
Intelligence (higher is better)20.713.1−36.7% Gemini 2.5 Flash (Rea… is 36.7% less intelligent
Total AA cost (lower is better)$1,501.22Not reported— not comparable
End-to-end time (lower is better)20.86s17.75s−14.9% Gemini 2.5 Flash (Rea… is 14.9% faster
Price per 1M tokens (in / out)$3.00 / $15.0$0.30 / $2.50
Input modalitiesText, ImageText, Image, Speech, Video
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-4-5-sonnet-thinking/gemini-2-5-flash-reasoning · Markdown: /api/v1/compare/claude-4-5-sonnet-thinking/gemini-2-5-flash-reasoning?format=md · llms.txt · agent skill