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AI model · OpenAI

GPT-5.2-Codex

GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....

The figures

Made by
OpenAI
Model ID
openai/gpt-5.2-codex
Input
$1.75 per million tokens
Output
$14 per million tokens
Context window
400K tokens
Longest answer
128K tokens
Takes in
text, image
Gives back
text
Reasoning
Yes
Tool calling
Yes
Reads images
Yes
Open weights
No
Released
14 Jan 2026

Read on 3 Oct 2026.