What is ChatGPT Atlas, OpenAI's AI browser?

ChatGPT Atlas is a web browser made by OpenAI with ChatGPT built directly into it. OpenAI launched it in October 2025, first for Mac, with plans to expand to other platforms. It is part of a wider trend of AI browsers, alongside Perplexity's Comet and AI features being added to Chrome, Edge and other browsers.

The idea is simple. Instead of copying text from a web page into ChatGPT, the assistant is already there, beside whatever page you are viewing. You can ask questions about the page, summarise an article, compare products you are looking at or get help filling in information, without switching tabs.

Its main features include:

1. A ChatGPT sidebar that understands the page you are on. You can ask "What are the key points of this article?" or "Is this a good deal compared with similar products?"
2. Agent mode, where ChatGPT can carry out tasks in the browser on your behalf, such as navigating pages, gathering information or preparing a shopping cart, while asking for your approval before important actions.
3. Browser memories, an optional feature that lets ChatGPT remember context from sites you visit to give more personal help later. You can view, manage or turn this off.
4. Familiar browsing basics such as tabs, bookmarks and the ability to import data from other browsers.

Who might find it useful? People who already use ChatGPT heavily, researchers who read many pages, online shoppers comparing products and professionals who want help with web-based tasks.

There are important things to consider:

Privacy. An AI browser can potentially see much more of your online activity than a chatbot. Review the settings for browser memories, data used for training and which sites ChatGPT can see. Use incognito or logged-out modes for sensitive browsing.
Security. AI agents that browse the web can be targeted by prompt injection, where hidden text on a malicious website tries to trick the AI into doing something harmful. Be careful using agent mode on unfamiliar sites, and avoid giving it access to banking or sensitive accounts.
Maturity. AI browsers are still new. Expect occasional mistakes and changing features.

Availability, platforms and features may change, so check OpenAI's official website for current details. If you try it, start with reading and research tasks before trusting it with actions on important accounts.