DeepSeek V4.1 Flash (Max) vs GPT-5.1 (High)

DeepSeek V4.1 Flash (Max) vs GPT-5.1 (High). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

DeepSeekDeepSeek V4.1 Flash (Max)Off the frontier
Intelligence
39.50
Total cost
$672
OpenAIGPT-5.1 (High)Not ranked · benchmark data missing
Intelligence
24.70
Total cost
-
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.

MetricDeepSeek V4.1 Flash (Max)GPT-5.1 (High)Difference
Intelligence (higher is better)39.524.7−37.5% GPT-5.1 (High) is 37.5% less intelligent
Total AA cost (lower is better)$671.96Not reported— not comparable
End-to-end time (lower is better)15.00s28.58s+90.5% GPT-5.1 (High) is 90.5% slower
Price per 1M tokens (in / out)$0.29 / $1.20$1.25 / $10.0
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerDeepSeek V4.1 Flash (Max): what beats itGPT-5.1 (High): what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/deepseek-v4-1-flash/gpt-5-1 · Markdown: /api/v1/compare/deepseek-v4-1-flash/gpt-5-1?format=md · llms.txt · agent skill