This AI browser is giving you access to Opus 4.8, GPT 5.5, GLM-5.2, and more for free

If you’ve been holding off on paying for a stack of AI subscriptions just to try the newest models, Tabbit might have caught your eye today. The team behind the browser posted a quick rundown of the models it now supports, and the list is genuinely stacked. You get Claude Opus 4.8, GPT 5.5, GLM-5.2, Gemini-3.1 Pro, Qwen3.7-Max, and a few others, all free to use.

The catch, if you can even call it that, is pretty simple. Tabbit is asking people to set it as their default browser to claim a free Pro membership. Do that, and you can use every one of those models at no cost during what the company is calling its public bonus period.

There’s no mention of how long that window stays open or what the usage limits are. So it’s worth going in with that in mind.

Tabbit isn’t a name that comes out of nowhere either. I brought it up not too long ago when I was writing about ChatGPT Atlas seemingly being left to gather dust, and Tabbit was actually the browser I was using to put that piece together.

Getting free access to this many frontier models in one place is rare, and for anyone who bounces between different AI tools depending on the task, that flexibility alone makes it tempting to grab.

That said, I’d be doing you a disservice if I painted it as flawless.

In my brief hands-on with Tabbit, I ran into performance issues, and it reminded me a lot of what I noted with the Aside browser. If you’ve been following along, you’ll know Aside felt sluggish for me too and even had my MacBook heating up. These newer AI browsers clearly have plenty going on under the hood, but the performance side is something they really need to sort out going forward. Nobody wants a browser that lags while it’s showing off how many models it can run.

Still, if the trade-off is a bit of lag in exchange for free access to the latest AI models, that’s an easy shot to take for a lot of people. Just set your expectations accordingly, claim what you can while the bonus period is live, and see whether it earns a permanent spot in your setup.

You can download the browser from the official website for Mac and Windows.

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