GPT-5.2 Codex (Xhigh) vs Grok 4.20 0309 v2 (Non-reasoning)

GPT-5.2 Codex (Xhigh) vs Grok 4.20 0309 v2 (Non-reasoning). 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)Grok 4.20 0309 v2 (Non-reasoning)Difference
Intelligence (higher is better)28.514.2−50.2% Grok 4.20 0309 v2 (No… is 50.2% less intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)147.98s5.25s−96.5% Grok 4.20 0309 v2 (No… is 96.5% faster
Price per 1M tokens (in / out)$1.75 / $14.0$1.25 / $2.50
Input modalitiesText, ImageText, Image
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/grok-4-20-non-reasoning · Markdown: /api/v1/compare/gpt-5-2-codex/grok-4-20-non-reasoning?format=md · llms.txt · agent skill