Claude Opus 5.5 (Low, Default Fallback) vs Sonar Reasoning

Claude Opus 5.5 (Low, Default Fallback) vs Sonar Reasoning. 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.

MetricClaude Opus 5.5 (Low, Default Fallback)Sonar ReasoningDifference
Intelligence (higher is better)42.38.7−79.4% Sonar Reasoning is 79.4% less intelligent
Total AA cost (lower is better)$860.33Not reported— not comparable
End-to-end time (lower is better)11.47sNot reported— not comparable
Price per 1M tokens (in / out)$4.00 / $20.0—
Input modalitiesText, ImageText
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5-low/sonar-reasoning · Markdown: /api/v1/compare/claude-opus-5-5-low/sonar-reasoning?format=md · llms.txt · agent skill