ChatGPT Atlas Alternatives (2026): AI Browsers Compared

ChatGPT Atlas got a lot of people asking the same question: what does it mean to browse with an AI beside you, or even doing parts of the job for you? OpenAI's help centre now says ChatGPT Atlas has been retired and no longer receives updates, so if you used it, you'll want somewhere else to go. The choice is wider than most people realise, and some of it's already in a browser you have.

Here are nine AI browsers in no particular order, sorted alphabetically. I've taken each description from the browser's own website or help pages, so check the current details there before you install anything. I couldn't confirm a tenth from official pages, so I've left it out. If you'd like a different angle, my guide to AI tools for small business owners covers the wider toolkit.

AI browsers compared at a glance

In the free plan column, Yes means the browser's own site or app store listing shows a free way to use it. No means the site doesn't describe a free plan. Features and limits change often, and some tools need an account, so confirm on the browser's own page.

Tool	Type	Good for	Free plan
Brave	Privacy browser	Browsing with a built-in Leo AI assistant	Yes
Comet	AI browser	An assistant that researches and automates web tasks	Yes
Dia	AI browser	Tab-aware AI for a busy working day	Yes
Fellou	Agentic browser	Automating repetitive online tasks	Yes
Microsoft Edge	Mainstream browser	Copilot to summarise and compare pages	Yes
Opera Neon	Agentic browser	A browser built to act on your tasks	No
Sigma AI Browser	Private AI browser	Encrypted AI chat and open-source code	Yes
SigmaOS	Mac browser	Workspaces and a tidy, Safari-like feel	Yes
Strawberry	Browser with agents	AI agents that understand your tools and context	Yes

Nine browsers with an AI assistant or agent built in

Brave

Best for: People who want a privacy-minded browser with an AI assistant built in that works without creating an account.

Comet

Best for: People who want a browser that researches the web, automates tasks and helps organise email, on desktop and phone.

Dia

Best for: Busy workers who want an assistant that reads across open tabs, with a morning brief and grouped tabs.

Fellou

Best for: People with repetitive web chores who want a browser that takes automated action, plus an open-source framework for builders.

Microsoft Edge

Best for: Anyone already in the Microsoft world who wants Copilot beside the page for summaries, comparisons and quick answers.

Opera Neon

Best for: People curious about a browser that interprets the web, manages tabs and acts on commands, on Mac or Windows.

Sigma AI Browser

Best for: Privacy-conscious users who want AI chat inside a browser whose code is public, on Mac, Windows or iPhone.

SigmaOS

Best for: Mac users who like tabs sorted into workspaces and a browser built on WebKit, the same engine as Safari.

Strawberry

Best for: Teams and solo workers who want AI agents inside the browser that understand their tools, on Mac or Windows.

Assistant or agent: what an AI browser can do for you

Two ideas get mixed up in this area. An assistant answers questions about the page you're on: it summarises, compares and explains. An agent goes further and acts: it clicks, fills in forms and moves between pages on your behalf. Most AI browsers do some of each, and the balance differs a lot.

• Assistant features. Page summaries, side-by-side comparisons and quick answers, usually in a panel beside the page.
• Agent features. Multi-step tasks such as gathering information from several sites or filling in a form you've described.
• Workspace features. Tab grouping, daily briefings and links to your calendar or inbox.

What an AI browser can see in your accounts

A browser sits where your logins live, so it's worth being clear about what an AI inside it can read. Check what each tool says it can see, whether pages you're signed in to are shared with the AI, and where the settings are to switch features off. Read the privacy page for the tool before you connect email or calendars.

For anything sensitive, such as banking pages or checkout pages, keep a close eye on what an agent is doing, or do those steps yourself. Review each action it proposes, and never type secrets or passwords into a chat panel.

How to choose an AI browser for work

Start with the jobs you do every day. If you spend your time reading and comparing, assistant features will carry you a long way. If you repeat the same web chores, look harder at the agent side. If privacy comes first, look at where data is processed and what you can turn off.

Then think about devices. Some of these browsers run on Mac and Windows only, others add phones, and one is built for Mac. Check that it works where you work, and that you can import your bookmarks and passwords without drama.

Questions to ask before you switch browsers

• Which devices does it run on, and is a mobile version available?
• What can the AI read, and can I limit it to pages I choose?
• Does it need an account, and is there a free way in?
• Can I import my bookmarks, history and saved logins?
• What happens to my data when I turn the AI off?
• Does it use a standard engine, so my extensions still work?

If you'd like help working out where AI fits in your business, you can ask about working with an AI consultant in the UK. For a wider look at what's free to try, see my guide to AI agents that are free to try.

Why a newer, smaller AI browser can be worth testing carefully

Smaller browsers often move faster and try bolder ideas, and some focus on privacy or on a single kind of work. The trade-off is that things change quickly, so check the update date, read the help pages and start with a spare profile rather than your main one.

Do you make an AI browser or a browser assistant? Tool makers can ask to be considered for a featured place on this list.

A short checklist before you move to an AI browser

Choose two that suit your devices, read what each says it can access, try them on a normal day's reading and research, and keep your current browser installed until you're happy. You can always switch back.

If that raises the next question, see Arc Browser Alternatives (2026): 10 Tools Compared.

Frequently asked questions

What is an AI browser?

It's a web browser with an AI assistant or agent built in, so you can ask questions about the page you're on or have it carry out steps for you.

Do AI browsers need an account?

Several have a free way in, and some need an account. The table on this page shows each browser's free plan status, and each browser's own page has the current details.

Are AI browsers safe to use?

They can be, if you check what the AI can access, keep sensitive steps in your own hands and review any action before it happens.

Can I keep my current browser as well?

Yes. Many people try an AI browser alongside their usual one and only switch when they're confident it suits them.

Do AI browsers work on phones?

Some do and some are desktop only. Each browser's own page lists the devices it supports.