OpenAI
GPT-5.3 Codex
Coding-specialised variant tuned for diff editing, repository navigation, and long autonomous coding loops. Powers Codex CLI.
At a glance
- Context
- 400Ktokens
- Input
- $1.75/ M tok
- Output
- $14/ M tok
- Released
- 2025-11-12
OpenAI
Coding-specialised variant tuned for diff editing, repository navigation, and long autonomous coding loops. Powers Codex CLI.