How to Download & Use ChatGPT Atlas AI Web Browser on macOS

If you’re looking for a new way to browse the web, one that integrates AI directly into your experience, then ChatGPT Atlas is worth a look. Developed by OpenAI, ChatGPT Atlas is a Chromium-based browser for macOS that embeds the power of ChatGPT into your browsing workflow.

In this step-by-step guide, you’ll learn how to download, install, set up, and configure ChatGPT Atlas on your Mac — plus how to manage key features like the ChatGPT sidebar and browser memories.

So let’s get started.

What is ChatGPT Atlas?

Before you dive in, here’s a quick overview of what ChatGPT Atlas brings to the table:

It’s a browser built with ChatGPT at its core — no separate chat app required.
It has a ChatGPT sidebar available on any page — summarise content, ask AI questions directly in the context of what you’re viewing.
It supports browser memories — optional feature where the browser (via ChatGPT) can remember facts from your browsing history for smarter responses.
The initial version is available for macOS only (Windows, iOS & Android coming later).

In short: if you’re on a Mac, setting up ChatGPT Atlas means you’re getting an AI-augmented browsing experience built around your tasks rather than just webpages.

What You’ll Need Before You Start

Before installing ChatGPT Atlas on your Mac, ensure the following:

A Mac running macOS (check minimum version in the download page)
An internet connection (for download, sync and on-boarding)
A ChatGPT account (Free, Plus, or Pro) — you’ll sign in after installation
Optional but helpful: your existing browser data (bookmarks, passwords, history) if you’d like to import it

Once you have these ready, you’re all set to begin.

Step 1: Download ChatGPT Atlas

Open your preferred browser on your Mac.
Go to the official download page: chatgpt.com/atlas
Click the Download for macOS button. You’ll get a .dmg or installer file.
Once the file is downloaded, locate it in your Downloads folder.

Step 2: Install ChatGPT Atlas on macOS

Double-click the downloaded .dmg file to mount it.
Drag the ChatGPT Atlas icon into your Applications folder, as instructed.
Open your Applications folder and launch ChatGPT Atlas.
The first time you open it, macOS may prompt you for permission to open an app downloaded from the internet — click Open.
If asked, give permission for key system features (e.g., default browser, access to files) as required.

Step 3: Sign In and Import Data

Once Atlas launches, you’ll be prompted to sign in with your ChatGPT account. Use the account you already have (Free, Plus, Pro).
After signing in, you’ll have the option to import data from another browser — bookmarks, passwords, browsing history, etc.
Decide whether to import or skip. If you skip, you can always do it later via settings.

Step 4: Choose Your Settings (Memory, Default Browser etc.)

After sign-in, ChatGPT Atlas may ask whether you want to enable Browser Memories — where ChatGPT can remember insights from your browsing. This is optional and you control it.
- If you want full context-aware browsing, enable it.
- If you prefer minimal tracking, you can turn it off now or later.
Choose if you want ChatGPT Atlas to be your default browser — you’ll get a prompt for this.
Review any additional permissions or features (e.g., sidebar availability, agent mode if you’re on Plus/Pro).

Step 5: Explore the ChatGPT Sidebar and Key Features

To make the most of ChatGPT Atlas:

On any webpage, look for the “Ask ChatGPT” sidebar icon (usually in the top-right or via a shortcut). Use it to ask questions about the content you’re viewing.
Highlight text on a webpage, then right-click or use the sidebar to get ChatGPT to summarize, explain, or rewrite it.
Visit Settings → Data & privacy / Browser memories to manage what Atlas remembers, view memory entries, or clear them entirely.
If you’re on a paid ChatGPT plan, look out for Agent Mode features — the browser may perform tasks on your behalf (bookings, form-filling).

Step 6: Set Up Privacy & Data Controls (Important!)

Because ChatGPT Atlas integrates deeply with browsing, it’s wise to review privacy settings right away:

Go to Settings → Data Controls.
Decide whether to allow your browsing content to be used for model improvement (“Include web browsing” toggle).
For browser memories: check which domains or pages are permitted — you can exclude sensitive sites.
Enable Incognito/Logged-out mode for sessions you prefer the browser not to track.
Remember: you can always clear your browsing history and associated memories.

Wrapping Up

And there you have it — a full walkthrough on how to set up ChatGPT Atlas on macOS.

Once installed and configured, you’ll have an AI-powered browsing experience where ChatGPT works with you, not just for you. It’s especially handy for research, writing, summarising webpages, and managing online tasks — all from within the browser.

If you’re ready to embrace a new kind of web experience, download ChatGPT Atlas, sign in, import your data, set your preferences, and start browsing smarter.