OpenAI's Codex app is now on mobile via ChatGPT for iOS and Android. Here's what it does, how to set it up, how it compares to Claude Code mobile.

On Thursday, OpenAI announced the release of a light-weight version of its agentic coding tool Codex, the latest model of which OpenAI launched earlier this month. GPT-5.3-Codex-Spark is described by ...

OpenAI has launched mobile support for Codex through the ChatGPT app, now available on iOS and Android. This update enables users to manage Codex directly from their phones, with features like ...