Codex is easily one of the most powerful tools OpenAI has to offer. Combined with powerful models, Codex can be used for serious vibe coding and more. You don’t need to be on your desktop computers to use it either. OpenAI has announced that you can access Codex in the ChatGPT Mobile app.
Touch grass and leave your laptop—Codex is now on your phone.
Now in preview on the ChatGPT mobile app. pic.twitter.com/HYxqYEB3j4
— ChatGPT (@ChatGPTapp) May 15, 2026
Speaking of Codex, Ollama is now available through the Codex app, which means you can use open models to get some serious coding done. You will just have to use “ollama launch codex-app” to get started.
