However, despite the focus on agentic AI, one of the biggest AI companies in the world is shuttering its own AI browser. When will ChatGPT Atlas shut down? OpenAI will officially shut down ChatGPT Atlas on Sunday, Aug. 9. As such, the company encourages users to export or save all of their ChatGPT Atlas data, including bookmarks and pages. Any of these will be a more full-featured replacement for ChatGPT Atlas than settling for the ChatGPT app.