GPT-5.5 (Xhigh) vs GPT-5 nano (Medium)

GPT-5.5 (Xhigh) vs GPT-5 nano (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
OpenAIGPT-5 nano (Medium)Not ranked · benchmark data missing
Intelligence
12.50
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)GPT-5 nano (Medium)Difference
Intelligence (higher is better)38.412.5−67.4% GPT-5 nano (Medium) is 67.4% less intelligent
Total AA cost (lower is better)$5,294.36Not reported— not comparable
End-to-end time (lower is better)44.96s40.59s−9.7% GPT-5 nano (Medium) is 9.7% faster
Price per 1M tokens (in / out)$5.00 / $30.0$0.05 / $0.40
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.5 (Xhigh): what beats itGPT-5 nano (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/gpt-5-nano-medium · Markdown: /api/v1/compare/gpt-5-5/gpt-5-nano-medium?format=md · llms.txt · agent skill