GPT-5.5 (Xhigh) vs Sonar

GPT-5.5 (Xhigh) vs Sonar. 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
PerplexitySonarNot ranked · benchmark data missing
Intelligence
7.70
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)SonarDifference
Intelligence (higher is better)38.47.7−79.9% Sonar is 79.9% less intelligent
Total AA cost (lower is better)$5,294.36Not reported— not comparable
End-to-end time (lower is better)44.96sNot reported— not comparable
Price per 1M tokens (in / out)$5.00 / $30.0—
Input modalitiesText, ImageText
Open this matchup in the interactive pickerGPT-5.5 (Xhigh): what beats itSonar: 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-5-5/sonar · Markdown: /api/v1/compare/gpt-5-5/sonar?format=md · llms.txt · agent skill