Dia browser expands Windows access, but early users report broken AI features

The Browser Company is on the fourth iteration of its Windows Wednesday program and announced that it let in a thousand more users from the long waiting list.

Just let another 1000 people in off the waitlist. Join today to get early access to Dia on Windows! https://t.co/0QLQEtcB5E pic.twitter.com/YcWMoQK0af

— Dia (@diabrowser) August 19, 2026

With AI being Dia’s big selling point, people are naturally diving in to check out what the browser has to offer with its AI. But it looks like things aren’t going according to plan.

Instead of getting to test out the smart web assistant that the company keeps hyping up, a lot of people are staring at a completely broken feature. For many new testers on Windows, the AI sidebar simply gives up and displays a blank screen or a frozen icon.

We have seen a few threads about the issue crop up on Reddit, where multiple users have confirmed that they’re running into the same problem.

But it’s not just Reddit either. Even under the latest post on X, you’ll find a number of comments noting that the AI feature is broken in Dia for Windows.

It is a stain on an otherwise clean progression that the team has been making. Just last week, they showed off solid progress on tab organization during their weekly updates, making tabs smoother and easier to group. But tabs are something almost every browser does fine anyway. People are getting invited to Dia specifically to try the smart stuff, so having the main hook completely fail right out of the box leaves a bad first impression.

For reference, we did test to check if the AI features worked for Dia on a Mac, and they did. So this is a problem on Windows only.

Either way, we suspect that The Browser Company will sort out the AI problems soon, if they haven’t already fixed the issue at the time of this writing. 

On the subject of AI, it’s worth noting that the company recently announced that it’s bringing back the subscription model, locking AI features behind paid plans. So when Windows users finally get past the long waitlist only to find a basic browser with broken features, it feels like a double letdown.

Since the Windows version is still in beta, bugs like this are bound to happen. Hopefully the company irons out all these kinks before the official launch this fall.

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