GPT-5.2 tuned for long-horizon agentic coding; in Codex 2025-12-18, Responses API 2026-01-14.
Released
Dec 18, 2025
Context window
400K tokens
Max output
128K tokens
Parameters
Not disclosed
Input price
Not disclosed
Output price
Not disclosed
Prices are first-party list prices in USD at the standard tier. Last verified Oct 30, 2026.
Pricing
Launch priceJan 14, 2026
$1.75 in / $14.00 out
Current price
No longer sold