GPT-5.2-Codex

GPT-5.2-Codex

Developer	OpenAI
Release date	December 11, 2025
Family	GPT
Generation	GPT-5.2
Level
Context window	400K tokens
Max output	128K tokens
Input	Text, image
Output	Text
Knowledge cutoff	2025-08-31
Weights	Closed
Predecessor	GPT-5.1-Codex
Successor	GPT-5.3-Codex
Website	openai.com
Links	Docs

Part of a series on

OpenAI

No longer available

The publisher shut this model down on July 23, 2026. It can no longer be used from its own API. Recommended replacement: gpt-5.6-sol. Publisher notice

input: $1.75
cached: $0.175
output: $14.00
Context: 400Ktokens
Released: 11mo ago

Specifications

Model

Developer: OpenAI
Family: GPT GPT-5.2
Type: Language model
Released: December 11, 2025
Model ID: openai/gpt-5.2-codex

Capabilities

Input → output: Text, image → Text
Max output: 128K tokens
Tokenizer: GPT
Knowledge cutoff: 2025-08-31

Weights

Openness: Closed

Sources:models.devOpenRouter

Metadata synced Nov 6, 2026, 9:02 PM UTC