GPT-5.1 Codex mini (High) vs K2-V2 (Medium)

GPT-5.1 Codex mini (High) 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-5.1 Codex mini (High)Not ranked · benchmark data missing
Intelligence
20.40
Total cost
-
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-5.1 Codex mini (High)K2-V2 (Medium)Difference
Intelligence (higher is better)20.49.0−55.9% K2-V2 (Medium) is 55.9% less intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)10.10sNot reported— not comparable
Price per 1M tokens (in / out)$0.25 / $2.00—
Input modalitiesText, ImageText
Open this matchup in the interactive pickerGPT-5.1 Codex mini (High): what beats itK2-V2 (Medium): what beats it
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-1-codex-mini/k2-v2-medium · Markdown: /api/v1/compare/gpt-5-1-codex-mini/k2-v2-medium?format=md · llms.txt · agent skill