An update on our new AI browser, Dia:
— Josh Miller (@joshm) May 14, 2025
We just wrapped alpha testing with thousands of college students. Felt like the perfect moment to share a raw @browsercompany update on what’s been going on (including demos). So much to catch you up on… pic.twitter.com/oG1QLUJkcP
The Browser Company’s CEO, Josh Miller, recently shed more light on their upcoming browser, Dia, addressing community concerns and promising that the best elements of its predecessor, Arc, will continue in the new venture. Excitement and some apprehension have surrounded Dia, especially after the company’s shift from the well-loved Arc browser.
Many Arc users had been vocal about their attachment to features like vertical tabs. Miller directly addressed these concerns on X, stating, “we will be merging many of Arc’s greatest hits (incl. vertical tab options) into Dia!” This news will likely come as a relief to those who felt their favorite functionalities might be left behind. He further teased future innovations, saying, “Dia will be a better Arc, wait until you see what we’re dreaming up for tab management.”
The question on many users’ minds has been why the company chose to develop a new browser instead of building upon Arc. As we previously reported, some Arc browser fans were not pleased with the decision to launch Dia. Miller acknowledged these queries, mentioning he is “working on an essay that explains” the rationale. For now, he shared a CEO update video from a few months ago that touches upon the transformational goals for Dia.
Early access to Dia is also a hot topic. Miller confirmed that “@arcinternet members are getting first access to our beta and unlimited referrals!!” He clarified that an initial alpha test with college students was a barebones, unfinished version intended for learning. For other early Arc users eager to try Dia, he assured them that invites are coming “very, very soon!”
Dia’s most popular feature (so far) is chatting with your tabs.
Chat with a YouTube video.
Chat with a FigJam board.
Chat with Google Calendar.
The killer feature here is the automatic context from your tabs. No copy-and-pasting. No need to set context, Dia just knows. pic.twitter.com/eX3Ccaaxe1
— Josh Miller (@joshm) May 14, 2025
One user, Gino, praised Dia after initial skepticism, noting, “What’s got me hyped is how it’s not just layering AI on top, but actually building it into the browser’s core.” Miller responded saying, “oh man we’re gonna push deeper, so much deeper,” hinting at significant AI integration. He even shared an anecdote about Dia’s AI roasting him, suggesting a playful and perhaps insightful personality for the browser.
As development continues, the Browser Company aims to transition its user base smoothly, with Miller emphasizing that the “best is dropping in a couple months.” That said, for some fans, the damage is already done. Reactions to the CEO’s thread have been mixed, with many suggesting that the teased features of Dia could’ve been an extension for Arc. One user, hndsio, even sarcastically noted, “Once Josh realizes that a chat interface is *not* the future, they’ll pivot again.”
So it seems that some fans have lost trust in the company. Anyway, feel free to share your thoughts on The Browser Company’s decision to ditch Arc in favor of Dia.