GPT-5.6 Terra (Max) vs GPT-5 Codex (High)

GPT-5.6 Terra (Max) 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-5.6 Terra (Max)Off the frontier
Intelligence
42.10
Total cost
$2501
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.

MetricGPT-5.6 Terra (Max)GPT-5 Codex (High)Difference
Intelligence (higher is better)42.124.9−40.9% GPT-5 Codex (High) is 40.9% less intelligent
Total AA cost (lower is better)$2,500.72Not reported— not comparable
End-to-end time (lower is better)104.98s13.09s−87.5% GPT-5 Codex (High) is 87.5% faster
Price per 1M tokens (in / out)$2.00 / $12.0$1.25 / $10.0
Input modalitiesText, ImageText, Image
Open this matchup in the interactive pickerGPT-5.6 Terra (Max): 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/gpt-5-6-terra/gpt-5-codex · Markdown: /api/v1/compare/gpt-5-6-terra/gpt-5-codex?format=md · llms.txt · agent skill