GPT-5.1 Codex mini (High) vs GPT-6 Luna (Max)

GPT-5.1 Codex mini (High) vs GPT-6 Luna (Max). 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
-
OpenAIGPT-6 Luna (Max)On the frontier
Intelligence
38.10
Total cost
$122
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)GPT-6 Luna (Max)Difference
Intelligence (higher is better)20.438.1+86.8% GPT-6 Luna (Max) is 86.8% more intelligent
Total AA cost (lower is better)Not reported$122.05— not comparable
End-to-end time (lower is better)13.09s81.83s+525.1% GPT-6 Luna (Max) is 525.1% slower
Price per 1M tokens (in / out)$0.25 / $2.00$0.10 / $0.50
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.1 Codex mini (High): what beats itGPT-6 Luna (Max): 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/gpt-6-luna · Markdown: /api/v1/compare/gpt-5-1-codex-mini/gpt-6-luna?format=md · llms.txt · agent skill