ChatGPT Atlas Browser: All New Features & Installation Guide
Overview
ChatGPT Atlas is a new AI‑powered web browser developed by OpenAI. Built on Chromium and released for macOS on October 21 2025, it integrates ChatGPT directly into the browsing experience. The browser aims to deliver a faster, more secure and more intelligent way to navigate the web.
Key Features
Smarter New Tab Page & Searches
On the new tab page you can ask ChatGPT a question or enter a URL to see faster, more useful results in one place. Dedicated tabs for links, images, videos and news allow you to search more specific result types.
Ask ChatGPT Sidebar
The Ask ChatGPT sidebar lets you summarise, analyse or handle tasks directly on any page. You can highlight text inside a form field or document and ChatGPT will rewrite or refine the text without switching tabs.
In‑Line Writing Help
By pulling up ChatGPT directly in any form field, ChatGPT Atlas provides in‑line writing assistance. This feature helps draft emails, edit documents and refine content with AI suggestions.
Browser Memories & Home Page Suggestions
If you enable browser memories, Atlas remembers key details from your browsing to improve chat responses and offer smarter suggestions. The home page also surfaces personalised suggestions such as returning to pages you explored, digging deeper into a topic or automating routine tasks. Importantly, memories are private to your account and you have full control over what is remembered and what is not.
Agent Mode (Preview)
Plus, Pro and Business users can enable agent mode in Atlas. This preview feature allows ChatGPT to complete end‑to‑end tasks for you, such as researching a meal plan, making a shopping list and adding groceries to a cart. You remain in control: the agent asks before taking significant actions and you can pause or take over at any time.
Privacy and Permissions
Atlas prioritises user privacy. By default, the browser does not use your browsing content to train models, and you can choose to opt‑in or out of training. Site permissions for camera, microphone and location are requested only when necessary, and you can manage them in Settings.
Installation Guide (macOS)
- Visit chatgpt.com/atlas and download the installer (.dmg).
- Open the downloaded .dmg file from your Downloads folder.
- Drag the Atlas icon into your Applications folder.
- Eject the installer disk image from Finder (optional but recommended).
- Launch Atlas from Applications or using Spotlight search.
- Approve any macOS security prompts that appear during the first launch.
- When prompted, sign in to your ChatGPT account. You can optionally import bookmarks, saved passwords and browsing history from your current browser.
Making Atlas Your Default Browser
Open Atlas, go to Settings → General and click on Set Default to make Atlas your default browser. Confirm in macOS System Settings under Desktop & Dock → Default web browser. Setting Atlas as your default increases rate limits for the first seven days.
Importing Data
To import bookmarks, passwords and history from another browser, select ChatGPT Atlas in the menu bar, choose Import data from another browser, click Start import and allow keychain access. This will bring your saved data without affecting your experience in Chrome or other browsers.
Keeping Atlas Up to Date
Atlas automatically checks for updates, but you can manually check by going to the ChatGPT Atlas menu and selecting Check for updates.
Conclusion
ChatGPT Atlas represents the next evolution of web browsing with AI built in. With a smarter new tab page, an Ask ChatGPT sidebar, in‑line writing help, personalised browser memories and agent mode, the browser can transform how you explore the web. Follow the installation steps above to get started on macOS, and stay tuned for versions coming soon to Windows, iOS and Android.
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