Claude Sonnet 4.6 (Non-reasoning, High) vs GPT-5.1 Codex (High)

Claude Sonnet 4.6 (Non-reasoning, High) vs GPT-5.1 Codex (High). 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 Sonnet 4.6 (Non-reasoning, High)GPT-5.1 Codex (High)Difference
Intelligence (higher is better)24.723.7−4.0% GPT-5.1 Codex (High) is 4.0% less intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)11.94s12.93s+8.3% GPT-5.1 Codex (High) is 8.3% slower
Price per 1M tokens (in / out)$3.00 / $15.0$1.25 / $10.0
Input modalitiesText, ImageText, Image
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-sonnet-4-6/gpt-5-1-codex · Markdown: /api/v1/compare/claude-sonnet-4-6/gpt-5-1-codex?format=md · llms.txt · agent skill