GPT-5.4 mini (medium) vs GPT-5 Codex (high)

GPT-5.4 mini (medium) vs GPT-5 Codex (high). A reliable intelligence-versus-cost verdict requires both models' intelligence scores and benchmark-run costs. Missing data is not a performance verdict.

OpenAIGPT-5.4 mini (medium)Not ranked · benchmark data missing
Intelligence
29.80
Total cost
-
OpenAIGPT-5 Codex (high)Not ranked · benchmark data missing
Intelligence
36.10
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.

MetricGPT-5.4 mini (medium)GPT-5 Codex (high)Difference
Intelligence (higher is better)29.836.1+21.1% GPT-5 Codex (high) is 21.1% more intelligent
Total AA cost (lower is better)Not reportedNot reported— not comparable
End-to-end time (lower is better)10.71s15.56s+45.3% GPT-5 Codex (high) is 45.3% slower
Price per 1M tokens (in / out)$0.75 / $4.50$1.25 / $10.0
Input modalitiesNot reportedNot reported
Open this matchup in the interactive pickerGPT-5.4 mini (medium): what beats itGPT-5 Codex (high): what beats it
Matchup

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