Claude 4 Sonnet (Reasoning) vs o3

Claude 4 Sonnet (Reasoning) vs o3. A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

AnthropicClaude 4 Sonnet (Reasoning)Not ranked · benchmark data missing
Intelligence
18.90
Total cost
-
OpenAIo3Not ranked · benchmark data missing
Intelligence
20.20
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 4 Sonnet (Reasoning)o3Difference
Intelligence (higher is better)18.920.2+6.9% o3 is 6.9% more intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)Not reported11.00s— not comparable
Price per 1M tokens (in / out)—$2.00 / $8.00
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerClaude 4 Sonnet (Reasoning): what beats ito3: 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-4-sonnet-thinking/o3 · Markdown: /api/v1/compare/claude-4-sonnet-thinking/o3?format=md · llms.txt · agent skill