OpenAI has announced the integration of its AI coding assistant, Codex, into the ChatGPT mobile app, available for both iOS and Android users. This new feature allows developers to manage their coding workflows remotely, enabling them to review outputs, approve commands, and switch between AI models directly from their smartphones. OpenAI emphasizes that this functionality goes beyond simple task management, as users can work across multiple coding threads and launch new tasks without being tethered to their desktops. This rollout is part of OpenAI's ongoing efforts to enhance agentic AI coding tools that require minimal user intervention. Recently, Codex also gained background execution support on desktop systems, allowing it to autonomously run coding workflows. The rapid updates come amid growing competition in the AI coding assistant market, particularly from Anthropic, which has introduced similar features in its Claude Code solution. As AI-assisted coding continues to grow, both OpenAI and Anthropic are vying for dominance in this fast-evolving field.