OpenAI has announced a significant expansion for its advanced coding tool, Codex, by integrating it directly into the ChatGPT mobile application. This move empowers developers with the ability to monitor and manage their entire development workflows remotely from their smartphones. The new functionality, currently in a preview phase, is now accessible to users across all plans on both iOS and Android devices.

This integration goes beyond simple task dispatch, offering comprehensive control over coding environments. Users can now view their live Codex environments directly on any mobile device where the app is running. This expanded access allows developers to seamlessly navigate across multiple project threads, review code outputs, approve commands, switch between different AI models, or initiate entirely new tasks—all from the convenience of their mobile device.

The mobile launch follows a series of recent enhancements to Codex’s capabilities. Last month, OpenAI introduced the ability for Codex to operate in the background within desktop environments, enabling the tool to autonomously handle various programming tasks. Earlier this month, the company further extended its reach with a new Chrome extension, allowing the AI agent to function within active browser sessions, thereby broadening its utility for developers.

This strategic update comes amidst heightened competition in the realm of AI-powered coding assistants. Rival firm Anthropic previously rolled out a similar feature called “Remote Control,” which facilitates remote oversight of its Claude Code agent. The ongoing race between OpenAI and Anthropic underscores the intense battle for market dominance in agentic coding tools, with both Codex and Claude Code continuing to see widespread adoption among businesses and tech professionals.