OpenAI has announced that its AI coding assistant Codex is coming to smartphones through the ChatGPT mobile app, expanding the company’s push into agentic software development tools and mobile productivity. The feature is currently rolling out in preview for both iOS and Android users.
Previously available primarily through desktop and web environments, Codex can now be accessed remotely from mobile devices, allowing developers to monitor, manage, and interact with coding tasks directly from their phones. Users will be able to review outputs, approve changes, switch AI models, and launch new tasks without needing constant access to a laptop or workstation.
OpenAI stated that the mobile integration is designed to support developers working on the go. While users cannot fully code directly on their phones, the app enables interaction with Codex agents running on connected systems such as laptops or remote machines. Real-time updates, screenshots, test results, and progress notifications can be viewed through the ChatGPT app interface.
Codex itself has evolved significantly over the past year as OpenAI intensifies competition with AI coding platforms like Anthropic’s Claude Code. The platform now supports tasks such as feature development, bug fixing, repository analysis, pull request suggestions, codebase Q&A, and multi-agent parallel workflows. Recent updates also introduced memory features, browser control, and background desktop operation capabilities.
The mobile rollout reflects OpenAI’s broader strategy of turning ChatGPT and Codex into more deeply integrated “agentic” productivity platforms capable of assisting users across workflows, devices, and enterprise environments. Industry observers note that AI coding tools have become one of the fastest-growing segments within generative AI, with companies racing to build systems that can autonomously handle larger portions of software development work.
The move also comes amid intensifying competition in the AI coding ecosystem. Rivals including Anthropic, GitHub, and Figma are increasingly integrating AI coding agents into developer workflows and enterprise software systems.
OpenAI noted that Codex mobile access is currently available in preview across multiple ChatGPT subscription tiers, including free users, with broader feature expansion and Windows compatibility expected in future updates.
