Okay, I have been using ChatGPT Atlas for about 48 hours now.
I'm an early adopter of AI browsers, started with Dia, then moved to Comet, and I've been a pretty hardcore Comet user for the last three months.
We were one of the first startups to rollout Comet company-wide, we love it.
At the same time, I've felt a bit of a gravitational force pulling me back to Dia, I think what
@joshm and
@hursh built is pretty special.
Now that I've tried all three I can tell you, Dia is faster than Comet or Atlas, that's just instantly apparent if you compare the three.
Dia skills are also incredibly powerful, and then just released a new feature that allows you to build skills through prompts which makes it even more powerful.
Comet is the best when it comes to Agentic Shopping and Agentic Trading, from my testing so far, it's just really good at figuring things out through trial and error and getting the job done.
I'm a GPT-5 Pro subscriber so was super excited about Atlas. My first take is they rushed it and released too early. It's noticeably slower than Dia, doesn't have anything remotely close to their skills function, and can't take control, and navigate sites on its own like Comet does.
Additionally, it has some kinda surprising bugs. Like NordPass just won't work in Atlas. This extension worked instantly in both Dia and Comet. It also has some weird spacing issues where it renders icons from extensions in the wrong part of the page.
Overall, I just can't see using Atlas as my daily driver...yet. I'm now split between Dia and Comet, using both, just for different things.
I have some insane workflows setup in Dia thanks to skills. And I now shop agentically, and trade stocks and crypto agentically in Comet, and there's no going back.
But, OpenAI has an insanely smart team, Atlas could catch up, and fast. But my first take is, this one was rushed, and it's not ready for primetime, yet.