Is ChatGPT Atlas still available?

No. OpenAI retired Atlas and it no longer gets updates. Its browsing features now live in the ChatGPT app.

The browser is free on Mac, Windows, iPhone and Android. The agent that clicks through sites for you needs a paid Perplexity plan.

Can either one book things for me?

Both can try, but reviewers report slow, uneven results on booking and forms. Check what it's about to submit before it does.

Comet vs ChatGPT agent: which AI can browse the web for you?

OpenAI has retired its Atlas browser; its browsing features now live inside ChatGPT. So the real choice today is Perplexity's free Comet browser, whose agent clicks through sites on paid plans, or ChatGPT's agent mode, which does the same in a virtual browser.

Short answer. If you want AI inside the browser you use every day, Comet is the one: the browser is free, and the agent comes with Perplexity Pro. If you'd rather hand a web job to an agent that works in its own virtual browser while you do something else, ChatGPT's agent mode is the better fit. For both, reviewers say simple errands can still take longer than doing them by hand.

Side by side

	Comet	ChatGPT
What it is	Perplexity's free web browser with a built-in assistant that can browse and click through sites for you on paid plans.	OpenAI's chat assistant, which can now also browse the web and work on longer jobs for you on paid plans.
Price	Free: $0; Pro: $17/month billed yearly; Max: $167/month billed yearly; $200/month or $2,000/year on Perplexity's Max help page	Free: $0; Go: $8/month; Plus: $20/month
Free to try	Free browser; agent needs a paid plan	Free plan with limits
Does the task itself	yes the browser agent clicks through sites on paid plans	yes agent mode and Work tasks click through websites on paid plans; Free mostly answers and drafts
Its own email address	no	no it can read and act on your connected Gmail, but has no address of its own
You can text it	no not on the pages checked	no the WhatsApp number stopped working in January 2026
Its own computer and browser	no works in the browser on your own device	partly agent mode uses a virtual browser; Dots get their own cloud computers on Pro and up
Remembers you	Not confirmed on the pages checked	Remembers facts and past chats across conversations; limited on Free, more on paid plans
Where it lives	Mac, Windows, iOS, Android	web, iOS, Android, Mac and Windows desktop apps

What happened to Atlas

ChatGPT Atlas, OpenAI's separate web browser, has been retired and no longer gets updates. Its browsing features now live in ChatGPT itself, and the ChatGPT desktop app has a built-in browser on every plan.

How each one browses for you

Comet is a full browser for Mac, Windows, iPhone and Android, free for everyone since October 2025, with an assistant beside every page. Its agent opens pages, clicks and fills in steps for you, in the browser on your own device. The agent isn't on the free plan.

ChatGPT's agent mode works in a virtual browser and hands control back when you need to sign in. It's on paid plans: 40 agent messages a month on Plus, 400 on Pro.

How well they work

In The Verge's test of Comet, unsubscribing from two promotional senders took the agent about two minutes; the reviewer did it by hand in about 30 seconds. The same test saw it book a table with a made-up placeholder email and phone number.

A review of ChatGPT agent (updated May 2026) found it useful for supervised research but not for unattended errands: cookie banners, bot checks, login walls and payment steps could derail it.

What it costs

Comet: the browser is free. The agent needs Perplexity Pro ($17 a month billed yearly, with monthly limits) or Max ($200 a month, or $167 a month billed yearly, for higher limits).

ChatGPT: Plus is $20 a month (40 agent messages); Pro starts at $100 (400 agent messages).

Safety

Brave's security team showed Comet could be tricked by hidden instructions on web pages, and OpenAI warns the same about ChatGPT's agent mode. Be careful letting either act in your bank or email.

If you want web errands done without watching, and followed up over days, see ChatGPT vs Your Own AI Assistant.

Pick Comet if

You want AI inside your everyday browser
You want a free browser with an assistant beside every page
You already use Perplexity for search
You want it on your phone as well as your computer

Pick ChatGPT if

You'd rather the agent work in its own virtual browser
You already pay for ChatGPT Plus
You want writing, images and voice in the same app
You want tasks scheduled or started by a new Gmail message

Questions people ask

Is ChatGPT Atlas still available?: No. OpenAI retired Atlas and it no longer gets updates. Its browsing features now live in the ChatGPT app.
Is Comet free?: The browser is free on Mac, Windows, iPhone and Android. The agent that clicks through sites for you needs a paid Perplexity plan.
Can either one book things for me?: Both can try, but reviewers report slow, uneven results on booking and forms. Check what it's about to submit before it does.

Updated 2026-11-08. Product facts from each maker's own pages: see Comet and ChatGPT for sources.

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