GPT-5.4 is also more reliable, producing 18% fewer errors and 33% fewer false claims than GPT-5.2, according to OpenAI.

OpenAI today released the Codex app for Windows, powered by OpenAI’s frontier coding models, and it’s now the only coding agent with a first-class Windows experience.

OpenAI has released its Codex desktop app for Windows, adding a native sandbox and PowerShell support, enabling developers to ...

OpenAI has launched its Codex app on Windows, bringing a native AI coding assistant with project management, automations, and WSL support for developers.