GPT-5.6 Terra

gpt-5.6-terra · OpenAI · Codex

Input
$2.00
per million tokens
Output
$12.00
per million tokens
Blended
$4.50
input weighted 3:1 over output, because a coding agent reads far more than it writes

Plans that include it

PlanPriceMax possible spend
OpenAI ChatGPT Go $8/mo not measured
OpenAI ChatGPT Plus $20/mo not measured
OpenAI ChatGPT Pro $100/mo not measured

Checked 2026-08-20. JSON: /api/models/gpt-5.6-terra