OpenAI GPT-5.4 is rumored after a Codex demo leak; GPT-5.3 is already in Codex, raising release timing questions.

It is available to ChatGPT Pro, Enterprise, Business, and Edu customers and will be free to use for the next month.

Codex Security, formerly Aardvark⁠, has found hundreds of critical vulnerabilities in tested software in the past month.

OpenAI launches a new program offering free ChatGPT Pro, Codex tools, and API credits to support open-source developers and ...

The new AI-driven AppSec tool reportedly uncovered hundreds of critical flaws and thousands of high-severity issues during early testing.

GPT-5.3-Codex helped debug and deploy parts of itself. Codex can be steered mid-task without losing context. "Underspecified" prompts now produce richer, more usable results. OpenAI today announced ...

OpenAI launches Codex for Windows, letting developers run multiple AI coding agents, automate testing tasks, and sync projects seamlessly across Mac and Windows.

Users will have to connect their OpenAI or Anthropic accounts to Xcode via an API key. Apple said it uses an open standard that gives programmers the ability to use other compatible agents and AI ...