GPT-5.2 Codex (Xhigh) vs Mercury 2.5

GPT-5.2 Codex (Xhigh) vs Mercury 2.5. 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.

MetricGPT-5.2 Codex (Xhigh)Mercury 2.5Difference
Intelligence (higher is better)28.512.3−56.8% Mercury 2.5 is 56.8% less intelligent
Total AA cost (lower is better)Not reported$218.11— not comparable
End-to-end time (lower is better)135.26s4.32s−96.8% Mercury 2.5 is 96.8% faster
Price per 1M tokens (in / out)$1.75 / $14.0$0.25 / $0.75
Input modalitiesText, ImageText
Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-2-codex/mercury-2-5 · Markdown: /api/v1/compare/gpt-5-2-codex/mercury-2-5?format=md · llms.txt · agent skill