OpenAI has released a major update to its Codex developer suite, introducing a rebuilt command-line interface and the product’s first official integrated-development-environment extension. The overhaul is powered by the company’s GPT-5 model and is included at no extra cost across ChatGPT Plus, Pro, Team, Edu and Enterprise plans. The new IDE plug-in, available for editors such as VS Code, Cursor and Windsurf, allows developers to move coding tasks between their local machines and Codex Cloud and to request GPT-5-driven code reviews directly in GitHub pull requests. The refreshed CLI—now on version 0.25 after a rapid sequence of releases that began with 0.23 on Aug. 23—adds image inputs, message queuing, a "/model" command and a streamlined option for a lighter ‘minimal’ GPT-5 model. OpenAI said the rollout also lifts ChatGPT Plus usage limits by 50 percent, underscoring the firm’s push to position Codex as an end-to-end coding copilot spanning the terminal, IDE, cloud and mobile devices.