GPT-5.1 Codex (High) vs GPT-5.6 Luna (Xhigh)

GPT-5.1 Codex (High) vs GPT-5.6 Luna (Xhigh). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

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 (High)GPT-5.6 Luna (Xhigh)Difference
Intelligence (higher is better)23.734.6+46.0% GPT-5.6 Luna (Xhigh) is 46.0% more intelligent
Total AA cost (lower is better)Not reported$179.33— not comparable
End-to-end time (lower is better)12.91s40.39s+212.9% GPT-5.6 Luna (Xhigh) is 212.9% slower
Price per 1M tokens (in / out)$1.25 / $10.0$0.20 / $1.20
Input modalitiesText, ImageText, Image
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-1-codex/gpt-5-6-luna-xhigh · Markdown: /api/v1/compare/gpt-5-1-codex/gpt-5-6-luna-xhigh?format=md · llms.txt · agent skill