Claude Sonnet 5 (Low) vs GPT-5.5 (Low)

Claude Sonnet 5 (Low) vs GPT-5.5 (Low). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude Sonnet 5 (Low)Off the frontier
Intelligence
24.30
Total cost
$653
OpenAIGPT-5.5 (Low)Not ranked · benchmark data missing
Intelligence
30.70
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.

MetricClaude Sonnet 5 (Low)GPT-5.5 (Low)Difference
Intelligence (higher is better)24.330.7+26.3% GPT-5.5 (Low) is 26.3% more intelligent
Total AA cost (lower is better)$652.70Not reported— not comparable
End-to-end time (lower is better)8.68s8.15s−6.1% GPT-5.5 (Low) is 6.1% faster
Price per 1M tokens (in / out)$2.00 / $10.0$5.00 / $30.0
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude Sonnet 5 (Low): what beats itGPT-5.5 (Low): what beats it
Matchup

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