Claude Opus 5.5 (Max, Default Fallback) vs K2-V2 (High)

Claude Opus 5.5 (Max, Default Fallback) vs K2-V2 (High). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude Opus 5.5 (Max, Default Fallback)On the frontier
Intelligence
57.60
Total cost
$8708
Institute of Foundation ModelsK2-V2 (High)Not ranked · benchmark data missing
Intelligence
9.90
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 5.5 (Max, Default Fallback)K2-V2 (High)Difference
Intelligence (higher is better)57.69.9−82.8% K2-V2 (High) is 82.8% less intelligent
Total AA cost (lower is better)$8,708.20Not reported— not comparable
End-to-end time (lower is better)626.13sNot reported— not comparable
Price per 1M tokens (in / out)$4.00 / $20.0—
Input modalitiesText, ImageText
Open this matchup in the interactive pickerClaude Opus 5.5 (Max, Default Fallback): what beats itK2-V2 (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/claude-opus-5-5/k2-v2 · Markdown: /api/v1/compare/claude-opus-5-5/k2-v2?format=md · llms.txt · agent skill