OpenAI has recently published a detailed architecture description of the Codex App Server, a bidirectional protocol that decouples the Codex coding agent's core logic from its various client surfaces.

OpenAI has launched GPT-5.3-Codex-Spark, its first AI model built specifically for real-time coding, capable ...

OpenAI's new Spark model codes 15x faster than GPT-5.3-Codex - but there's a catch ...

Researchers found that .env files inside cloned repositories could be used to change the Codex CLI home directory path and load a rogue configuration file leading to arbitrary command execution. In a ...

What if writing code felt less like a chore and more like having a collaborative partner who understands your workflow? Below, OpenAI takes you through how Codex, their advanced AI-powered coding ...