GPT‑5.3‑Codex‑Spark releases with ultra-fast coding and 128k context window, redefining interactive development for ChatGPT ...

OpenAI introduces Harness Engineering, an AI-driven methodology where Codex agents generate, test, and deploy a million-line ...

GPT-5.3-Codex-Spark is the latest version of OpenAI's Codex and runs completely on Cerebras' wafer-scale engine.

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 introduced GPT-5 Codex, a version of GPT-5 that is fine-tuned for coding agent workflows and built to better support developers working across varied environments. Rather than just ...

OpenAI announced on Friday it’s launching a research preview of Codex, the company’s most capable AI coding agent yet. Codex is powered by codex-1, a version of the company’s o3 AI reasoning model ...

OpenAI on Monday released a new desktop application for its Codex artificial intelligence coding system, a tool the company says transforms software development from a collaborative exercise with 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 ...