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 offering a 25% speed increase over GPT-5.2 Codex, helping developers ship code faster.

What if writing code was as simple as having a conversation? Imagine describing your idea in plain language—”Create a responsive website with a contact form and a gallery”—and watching as functional ...

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 ...