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.

According to OpenAI, GPT-5 Codex improved human preference scores on mobile websites. In addition, when GPT-5 Codex is used ...

Last month, OpenAI also gave Codex the ability to run in the background in desktop environments — empowering the tool to take care of various tasks autonomously. Earlier this month, the company also ...

Last Friday, OpenAI introduced a new coding system called Codex, designed to perform complex programming tasks from natural language commands. Codex moves OpenAI into a new cohort of agentic coding ...