Claude Opus 5 (Max) vs DeepSeek V3.1 (Reasoning)

Claude Opus 5 (Max) vs DeepSeek V3.1 (Reasoning). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude Opus 5 (Max)Off the frontier
Intelligence
50.80
Total cost
$7275
DeepSeekDeepSeek V3.1 (Reasoning)Not ranked · benchmark data missing
Intelligence
13.50
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.

MetricClaude Opus 5 (Max)DeepSeek V3.1 (Reasoning)Difference
Intelligence (higher is better)50.813.5−73.4% DeepSeek V3.1 (Reason… is 73.4% less intelligent
Total AA cost (lower is better)$7,274.74Not reported— not comparable
End-to-end time (lower is better)63.34s23.64s−62.7% DeepSeek V3.1 (Reason… is 62.7% faster
Price per 1M tokens (in / out)$5.00 / $25.0$0.58 / $1.68
Input modalitiesText, ImageText
Open this matchup in the interactive pickerClaude Opus 5 (Max): what beats itDeepSeek V3.1 (Reasoning): what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5/deepseek-v3-1-reasoning · Markdown: /api/v1/compare/claude-opus-5/deepseek-v3-1-reasoning?format=md · llms.txt · agent skill