Claude Haiku 5.5 (Low) vs GPT-5.1 Codex mini (High)

Claude Haiku 5.5 (Low) vs GPT-5.1 Codex mini (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 Haiku 5.5 (Low)GPT-5.1 Codex mini (High)Difference
Intelligence (higher is better)29.520.4−30.8% GPT-5.1 Codex mini (H… is 30.8% less intelligent
Total AA cost (lower is better)$34.31Not reported— not comparable
End-to-end time (lower is better)10.19s10.10s−0.9% GPT-5.1 Codex mini (H… is 0.9% faster
Price per 1M tokens (in / out)$0.10 / $0.50$0.25 / $2.00
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-haiku-5-5-low/gpt-5-1-codex-mini · Markdown: /api/v1/compare/claude-haiku-5-5-low/gpt-5-1-codex-mini?format=md · llms.txt · agent skill