Claude Cowork vs ChatGPT Work: Whose Built-In Browser Actually Wins
A head-to-head test of the browsers built into Claude Cowork and ChatGPT Work, covering speed, form-filling, shopping, and everyday browser features.
Posted
5 days ago
Duration
Format
Review
sincere
Views
1.1K
81 likes
57 · 43
Big Idea
The argument in one line.
Claude Cowork's browser is consistently faster and more willing to finish edge-case tasks than ChatGPT Work's, but ChatGPT Work is the more polished everyday browser with history, autofill, and sharper rendering.
Who This Is For
Read if. Skip if.
READ IF YOU ARE…
You already pay for Claude Cowork or ChatGPT Work and want to know which built-in browser to actually use for tasks.
You're deciding between the two tools partly on the strength of their AI browser feature.
You want to know which model tier (Terra vs Sol, Opus vs Sonnet) to pick inside a browser task for speed versus quality.
You're curious how AI browsers handle real friction, like a form that won't submit or a product that's on backorder.
SKIP IF…
You don't use either tool's desktop app, since neither browser is available on web or mobile.
You're looking for a review of the chat models themselves rather than the browser feature.
TL;DR
The full version, fast.
Claude Cowork and ChatGPT Work both added AI-driven browsers, but they behave differently under the same tasks. Claude opens pages faster, finishes multi-step tasks in about half the time ChatGPT Work needs on its top model, and it will actually complete edge cases like submitting a form with an unusual field or finding a workaround when a product is only available for pre-order. ChatGPT Work matches Claude's speed if you switch it down to the Terra model, but it then gives up more easily on hard tasks, and on its slower Sol model it refuses to submit forms without explicit permission. Where ChatGPT Work pulls ahead is on ordinary browser polish: it shows browsing history, has autofill and a password manager, suggests previously visited sites, keeps its AI chat usable while the browser is full screen, and renders text more sharply. Claude Cowork lacks all of those and can't be opened without first starting a task. The conclusion is that there's no outright winner, it depends on whether you value raw task speed and completion or conventional browser polish.
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Sets up the head-to-head: ChatGPT Work's browser has existed for months, Claude Cowork just launched its own competing version.
00:22 – 01:57
02 · Browser Access
Both browsers are desktop-app only. ChatGPT Work can open a browser from any new chat; Claude Cowork only exposes its browser once a task has been started.
01:57 – 02:47
03 · Full-Screen Browsing
Both browsers can go full screen and look similar, but ChatGPT Work keeps its chat usable underneath while full screen; Claude Cowork's chat becomes inaccessible until you collapse the browser.
02:47 – 06:07
04 · Performance Tests
Single-page load speed and a three-item Amazon shopping task for a dog hiking backpack. Claude is consistently faster; ChatGPT Work only matches Claude's speed when switched down to its Terra model, and its top Sol model took nearly seven minutes on the same task.
06:07 – 07:20
05 · Form Test
Both are asked to fill out and submit a form with an unusual required poem field. Claude completes and submits it in about 30 seconds; ChatGPT Work refuses to submit without the poem or explicit permission, on both Terra and Sol.
07:20 – 09:59
06 · Shopping Test
Both are asked to buy a pair of backordered shoes without pre-ordering. ChatGPT Work gives up twice on Terra; Claude finds a UK store with immediate shipping. ChatGPT Work matches that answer only after switching to Sol, taking about five and a half minutes versus Claude's roughly two.
09:59 – 12:13
07 · Browser Basics
Both support tabs, a URL bar, opening pages in the default browser, and importing cookies/passwords. ChatGPT Work pulls ahead on browsing history, autofill, a password manager, new-tab site suggestions, sharper text rendering, and OS-standard zoom shortcuts, none of which Claude Cowork has yet.
12:13 – 13:02
08 · Final Verdict
No outright winner: the choice depends on whether speed and task completion (Claude) or everyday browser polish (ChatGPT Work) matters more to the viewer.
Atomic Insights
Lines worth screenshotting.
Claude Cowork's browser only opens after you start a task, while ChatGPT Work lets you open a browser from any new chat and use it like a regular browser.
Claude consistently opens a single webpage faster than ChatGPT Work across repeated tests.
On a three-item Amazon shopping task, Claude Cowork finished in about a minute versus roughly a minute and 22 seconds for ChatGPT Work on its fastest model.
ChatGPT Work's top-tier model (Sol) took nearly seven minutes to complete the same shopping task that Claude finished in about a minute.
Switching ChatGPT Work down to its faster Terra model matched Claude's speed on simple tasks without producing worse results.
Even on Terra, ChatGPT Work was still a bit slower than Claude regardless of whether Claude was set to Opus or Sonnet.
Asked to fill out a form with a required poem field, Claude completed and submitted it in about 30 seconds while ChatGPT Work refused to submit without being given the poem or explicit permission.
Given a product available only for pre-order, ChatGPT Work gave up after under a minute, twice, while Claude found that the same item could ship immediately from a UK store.
ChatGPT Work eventually matched Claude's pre-order workaround once switched to its Sol model, but that took about five and a half minutes versus roughly two minutes for Claude.
ChatGPT Work shows browsing history and has autofill and a password manager; Claude Cowork's desktop app can clear browsing data but has no visible history and no autofill or password manager.
ChatGPT Work suggests previously visited sites when you start typing in a new tab; Claude Cowork requires typing the full URL or search term every time.
ChatGPT Work stays usable for chat even when its browser is full screen; Claude Cowork's chat becomes inaccessible until the browser is un-fullscreened.
ChatGPT Work's Command-Plus zoom shortcut works inside its browser the way it does in Safari or Chrome; the same shortcut does nothing inside Claude Cowork's browser.
The reviewer judged ChatGPT Work's on-screen text noticeably sharper than Claude Cowork's, which looked comparatively fuzzy, like viewing through a screen-share app.
Takeaway
Speed and task follow-through separate these AI browsers more than raw features do.
WHAT TO LEARN
When comparing AI tools that do the same job, test them on friction cases (a required field the tool doesn't like, an item that isn't in stock) rather than the easy path, because that's where the real behavioral differences show up.
A tool that looks similar on the surface (two side-by-side browser panels) can differ enormously in behavior once you give it an edge case instead of a straightforward task.
The model tier you select inside an agentic tool can matter more than which product you picked in the first place; a faster/cheaper tier sometimes gives equivalent results, but not always.
Willingness to keep problem-solving past the first obstacle (finding a workaround for a backordered item) is a meaningfully different trait from raw task speed, and worth testing separately.
Conventional browser features like history, autofill, and site suggestions still matter even in an AI-first tool, because not every browsing session is a delegated task.
Running the same test five or six times before drawing a conclusion, as the reviewer did with the shopping task, catches inconsistent behavior that a single run would miss.
Glossary
Terms worth knowing.
Claude Cowork
A desktop app mode in Claude that lets the AI complete multi-step tasks, including browsing the web through a built-in browser panel, once a task has been started.
ChatGPT Work
A desktop app mode combining ChatGPT and Codex that includes a built-in browser panel usable at any time, not just inside a task.
Terra / Sol
Two speed-versus-quality model tiers available inside ChatGPT Work's browser tasks; Terra is faster, Sol is more capable but slower.
Resources
Things they pointed at.
00:22toolClaude Cowork
00:22toolChatGPT Work
04:56toolGPT-5.6 (Terra / Sol tiers)
05:43toolClaude Opus / Sonnet
03:22channelAmazon
06:11toolGoogle Forms
Quotables
Lines you could clip.
06:47
“So you're just gonna give up?”
the reviewer's exasperated nudge to ChatGPT Work after it abandoned the backordered-shoes task twice→ TikTok hook↗ Tweet quote
09:21
“With Claude though, you don't need to make that choice. It's fast and it's good.”
the single-sentence verdict on the speed-versus-quality tradeoff→ newsletter pull-quote↗ Tweet quote
12:13
“So head to head, there's no clear winner here. It really depends on which of the factors I covered in this video that you prioritize.”
the closing thesis of the whole comparison→ IG reel cold open↗ Tweet quote
The Script
Word for word.
Read-along
Don't just watch it. Burn it in.
See every word as it's spoken — crank it to 2× and still catch all of it. The same dual-channel trick behind Amazon's Kindle + Audible.
17px
ChatGPT Work has had a built -in browser for months now, and it's honestly one of its most powerful and underrated features. But not to be outdone, Claude Cowork just launched its own built -in browser, bringing unique features we haven't seen before. So in this video, I thought I would put them head -to -head, comparing their features, how they perform, and whether one ultimately comes out on top.
Right away, one thing they have in common is that you can only access these browsers on the desktop version of each tool. For Claude, that means the Claude desktop app, and for ChatGBT, that means the ChatGBT desktop app, the one that has both Codex and ChatGBT work in it. By the way, I'm going to be switching back and forth between these tools quite a bit, and they do look pretty similar, so it can be a little confusing.
So always remember that the Claude desktop app has this sort of... orange warm tint to it and i've set my chat gbt desktop app to have this bluish cool tint to it to make it easy to tell them apart anyway for both of them the browser appears in the exact same spot on the side here to the right of the chat and it's the exact same thing inside of clud but honestly that's about where the similarities end one key difference you'll notice with chat gbt work right away is that it lets you open up a browser at any time so here inside a new chat I can click on the top right to open up the side panel.
And then here's the browser. I could just type in any URL that I want and navigate and just use this as a regular browser. If we come over to Claude though, and we start a new task, you'll see that there is no way to access the browser.
You first have to start a task. Once you start a task, even if you just say hi, then at the top here, you'll notice a button to activate the browser, and then you can use this as a browser. so if you just want to open up one of these tools and browse the internet that's going to be a lot easier to do with chat gpt than it's going to be with cloud once you have each of the browsers open you'll notice that each of them can be full screened and it looks pretty much the same there's a button up here in chat gpt to full screen this And then inside of Claude, it looks very similar.
This same button will make it full screen. But that reveals another difference between these. In ClaudeCore, once your browser is full screen, there is no way to use Claude at the same time.
But inside of ChatGPT work, you'll notice that down here, you can always chat with ChatGPT and ask it questions or ask it to navigate the web for you. So even when it's full screen, you can still use its AI capabilities. With Cloud Cowork, if you want to use Cloud or ask it questions, you have to collapse it so that we have the chat over here on the left and the browser on the right.
So that's a little annoying, but what's more important is how well each AI works with its browser. I've already done a few head -to -head tests to compare them, and I'm pretty surprised by the results. The first thing I did was test how well each of them can...
just open up a single website, just like I'm doing right here. What you'll see is that Claude is faster at opening up the browser than ChatGBT is. ChatGBT is still quick.
Let's go. There we go. But every time I've done this, Claude has always been faster.
Next, I gave each of them a slightly more complicated task. I asked them to use the browser to find for me on Amazon three hiking backpacks I could put my little dog into. He weighs about eight pounds.
I wanted it to be under $100 and comfortable to wear and also for there to be spots where I could store my water bottles and other things. I gave ChatGPT a slight head start. We see that the Claude...
Browser has already opened and the ChatGPT work one has not opened yet. And now we have the ChatGPT work one open and they're both getting to work looking for the best backpacks. So one difference I've noticed in using both of them is that Claude likes to keep everything in one browser.
ChatGPT is opening up multiple browsers, which you'd think would make it go faster. But let's see if that's how it actually ends up. Okay, so they've both finished now.
Claude finished first, but shortly after that, ChatGPT work finished. And the total time that ChatGPT work took was a minute 22 seconds, and Claude was closer to a minute. So definitely faster with Claude.
So if we look at ChatGPT first, these are the backpacks that it found for me. Obviously, these look more than fine and fits all the criteria. And then if we look at the ones from Claude Cowork, These are the ones that I found.
Pretty similar. I think both of them found totally adequate products. By the way, I've run this test about five or six different times inside of ChatGPT because the first time that I did it, it took...
almost seven minutes to complete that task compared to the one minute we just saw and what that comes down to really is the model that you have selected originally i had 5 .6 soul effort level high and speed at standard because that's usually what i use inside of chat gbt but that took way too long, especially compared to the one minute that we saw with Claude.
So I started playing around with the different model configurations. And what I discovered is that ChatGPT works much faster when I have Terra selected. The effort level didn't matter too much, but the model definitely did.
And for this relatively simple task, dialing back to Terra didn't give me worse results than using Sol. It found me good backpacks, just as good as Sol did.
Overall though, Claude was still a little bit faster than even Terra was, and it didn't matter whether I was using Opus or Sonnet, they were still both faster. So it might be tempting to say that the ChatGPT browser is just as good as the one in Claude, as long as you switch to Terra. But before we can make that conclusion, we have to do a couple of more tests.
Next, I will ask both of them to fill out a basic form for me. I'm giving them the link to where the form is and all the information they need to fill it out. It's very straightforward.
So I'm leaving ChatGPT on Terra for this. And over here, you can see on the left, Claude in about 25 seconds is finishing it up. We're going on 30 seconds now.
All right. So now it is just finished. That took about maybe 30 seconds.
Now over here on the right, it didn't finish it because it's asking for the last bit of information. There was a final piece of the form that said you have to fill in a poem.
So it wouldn't do that on its own. It says you have to give me the poem. I've run this test a few times, by the way, and every time ChatGPT refused to submit the form for me.
This time it's because it wants me to actually give it the poem that it's supposed to put into the form. Other times, though, it would say it's not allowed to submit the form without my permission. And it didn't matter whether I was using Terra.
or Sol, it was always the same results. Still really fast, about 30 seconds, but it just never completed it the way that Claude did. All right, this next task is not as straightforward.
Basically, there are these shoes I really want. These are them right here, but as you see, they are currently back -ordered, and they won't ship out for basically another month. So I'm going to tell both these browsers, or both of these tools, to find for me these shoes and to add them to the cart, and I'm specifically telling them.
I don't want to pre -order. I want them to ship right away. And I don't think there's even any of these shoes available anywhere.
So I'm curious how it handles this task. So 55 seconds in and ChatGBT already gave up. It says I couldn't add them because the official listing shows they won't ship out for another month or so.
That was it. It just gave up. So I'm going to nudge it along a little bit.
I'm going to tell it. So you're just gonna give up. 37 seconds later and it gave up again.
It's like not even trying. Let's see what Claude's doing. So it says it's only available for pre -order.
How do you want to handle that? And look, this is what I was hoping for. It says you can actually buy these from the UK store and they'll ship right now or you can get a different color or you can take the pre -order or you can hold and check back in a few days.
This is much better. This is a lot more thorough than what ChatGPT delivered because I could order them right now in the UK store. But let's give ChatGPT another chance.
I'm going to run the same question again, but with the more powerful model. We'll switch it over to Sol and ask the same question, just to be fair. Okay, ChatGBT Sol is now finished and it came up with one of the same results that Claude came up with, which is that you can order this from the UK site for shipping right now.
Because I had Sol selected though, this took five and a half minutes. And if you remember, it only took Claude about two minutes to figure out the same thing. So for this task in ChatGBT, you can switch down to Terra to get...
faster results or you can leave it on soul to get better results but slower with clod though you don't need to make that choice it's fast and it's good i'm not going to show you all the testing i've done because the results are very consistent if i leave chat gpt on soul then both clod and chat gpt give me very similar adequate results but clod is going to be much faster if i switch chat gpt down to terra it will match the speed of clod But for some tasks, there will be a noticeable difference in the results.
That's a trade -off that I'm always going to be thinking about now. But that's not the full picture because in addition to being an AI browser, Both of these are also just browsers.
And from that standpoint, they have a lot in common. So of course, you can open up multiple tabs with each of them. There's a URL bar at the top.
There's a button that will open the page in your default browser, like if you commonly use Chrome or Safari. So you can quickly launch it over there. Both of them can import cookies and passwords.
Both browsers will also keep you logged in between sessions so you can come back to sites later without having to sign in again. But there are a few settings here where, quite frankly, ChatGPT Work pulls ahead. So for instance, ChatGPT Work will show you your browsing history.
In the Cloud desktop app, you can clear your browsing data, but you can't see the history of the websites you visited on that browser. ChatGPT also has autofill and a password manager, very typical for a lot of browsers, but Cloud Cowork doesn't have those yet. And another annoying thing, if you come to a new tab on ChatGPT Work, you'll get suggestions of sites you've already visited.
And if you start typing one in, it will automatically pop up. But you don't get that in Cloud Cowork. It's really annoying.
You have to type in the full URL for any site that you want to visit or the full search term that you want to search on Google. And then there are just a few little things that really make a difference. So first, comparing them side by side, ChatGPT over here on the right, I don't know if you could tell in the screen recording, just feels a little bit sharper to me.
It's easier to read the text, for instance, where with Cloud, it feels a little bit fuzzy. It almost feels like I'm viewing it through a screen sharing app. And there's other stuff, like if I hold down Command and press Plus inside of ChatGPT, it makes everything...
bigger which is how it works in safari and chrome but that doesn't work inside of cloud so overall chat gpt work includes more of the features i think people expect from a regular browser it feels like a more polished product than what we have with cloud which is of course to be expected because it came out earlier it just comes with some trade -offs so head to head there's no clear winner here it really depends on which of the factors i covered in this video that you prioritize whether that's speed intelligence or just overall polish and usability it really comes down to how you use your browser inside of chat gpt or cloud either way though you're going to be able to do a lot of the same things with both of them.
So to find out more about what you can do with a browser inside of a tool like ChatGPT or Cloud Cowork, check out this video I made recently. It's all about the different capabilities that I have found for browser use inside of ChatGPT work, but you can do a lot of those same things with the Cloud Cowork browser as well.
So if you're curious how to get the most out of browser use, click on this video right here and I'll see you over there in one second. Bye for now.
The Hook
The bait, then the rug-pull.
ChatGPT Work has had a built-in browser for months, and Claude Cowork just shipped its own version to catch up. The reviewer puts them through the same six tests, speed, forms, shopping, full-screen use, and everyday browser basics, and the results split in a way that surprised him.
Frameworks
Named ideas worth stealing.
02:47list
Six-test browser comparison protocol
Single-page load speed
Multi-step shopping task
Form completion with an edge case
Backorder / pre-order workaround
Full-screen usability
Everyday browser basics (history, autofill, tabs)
The structure the reviewer used to compare the two browsers beyond a surface-level look, running the same task against both tools and, where relevant, against multiple model tiers.
Steal forany side-by-side tool comparison video or post
CTA Breakdown
How they asked for the click.
VERBAL ASK
12:32next-video
“So to find out more about what you can do with a browser inside of a tool like ChatGPT or Cloud Cowork, check out this video I made recently.”
Soft end-of-video pointer to a related video about browser-use capabilities, no product pitch or sponsor involved.
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