OpenAI launches GPT-5.4, calling it its most capable and efficient AI model yet, with AI agents, computer control, improved reasoning, and a 1M-token context.

OpenAI has launched Codex for Open Source, offering maintainers six months of free ChatGPT Pro and API credits amid a surge of AI-generated pull requests.

OpenAI brings its AI coding assistant Codex to Windows, allowing developers to run multiple AI agents and streamline complex programming workflows.

The Codex app for Windows already has over 500,000 developers in waitlist. Here's everything you need to know.