Gemini 3.8 Flash (high) vs GPT-5 Codex (high)

Gemini 3.8 Flash (high) 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.

GoogleGemini 3.8 Flash (high)Off the frontier
Intelligence
41.20
Total cost
$1623
OpenAIGPT-5 Codex (high)Not ranked · benchmark data missing
Intelligence
24.90
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.

MetricGemini 3.8 Flash (high)GPT-5 Codex (high)Difference
Intelligence (higher is better)41.224.9−39.6% GPT-5 Codex (high) is 39.6% less intelligent
Total AA cost (lower is better)$1,622.73Not reported— not comparable
End-to-end time (lower is better)17.43sNot reported— not comparable
Price per 1M tokens (in / out)$0.75 / $3.75$1.25 / $10.0
Input modalitiesNot reportedNot reported
Open this matchup in the interactive pickerGemini 3.8 Flash (high): what beats itGPT-5 Codex (high): what beats it
Matchup

Compare something else

Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gemini-3-8-flash/gpt-5-codex · Markdown: /api/v1/compare/gemini-3-8-flash/gpt-5-codex?format=md · llms.txt · agent skill