GPT-5.5 (Xhigh) vs K2-V2 (Medium)

GPT-5.5 (Xhigh) vs K2-V2 (Medium). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

OpenAIGPT-5.5 (Xhigh)Off the frontier
Intelligence
38.40
Total cost
$5294
Institute of Foundation ModelsK2-V2 (Medium)Not ranked · benchmark data missing
Intelligence
9.00
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.

MetricGPT-5.5 (Xhigh)K2-V2 (Medium)Difference
Intelligence (higher is better)38.49.0−76.6% K2-V2 (Medium) is 76.6% less intelligent
Total AA cost (lower is better)$5,294.36Not reported— not comparable
End-to-end time (lower is better)44.76sNot reported— not comparable
Price per 1M tokens (in / out)$5.00 / $30.0—
Input modalitiesText, ImageText
Open this matchup in the interactive pickerGPT-5.5 (Xhigh): what beats itK2-V2 (Medium): what beats it
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-5/k2-v2-medium · Markdown: /api/v1/compare/gpt-5-5/k2-v2-medium?format=md · llms.txt · agent skill