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

GPT-5.1 (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.

OpenAIGPT-5.1 (High)Not ranked · benchmark data missing
Intelligence
24.70
Total cost
-
OpenAIGPT-5.6 Luna (Xhigh)Off the frontier
Intelligence
34.60
Total cost
$179
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 (High)GPT-5.6 Luna (Xhigh)Difference
Intelligence (higher is better)24.734.6+40.1% GPT-5.6 Luna (Xhigh) is 40.1% more intelligent
Total AA cost (lower is better)Not reported$179.33— not comparable
End-to-end time (lower is better)49.30s45.80s−7.1% GPT-5.6 Luna (Xhigh) is 7.1% faster
Price per 1M tokens (in / out)$1.25 / $10.0$0.20 / $1.20
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.1 (High): what beats itGPT-5.6 Luna (Xhigh): 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/gpt-5-6-luna-xhigh · Markdown: /api/v1/compare/gpt-5-1/gpt-5-6-luna-xhigh?format=md · llms.txt · agent skill