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[return to "Cursor's latest “browser experiment” implied success without evidence"]
1. wilson+ri2[view] [source] 2026-01-17 05:37:53
>>embedd+(OP)
Hey, Wilson here, author of the blog post and the engineer working on this project. I've been reading the responses here and appreciate the feedback. I've posted some follow up context on Twitter/X[0], which I'll also write here:

The repo is a live incubator for the harness. We are actively researching the behavior of collaborative long running agents, and may in the future make the browser and other products this research produces more consumable by end users and developers, but it's not the goal for now. We made it public as we were excited by the early results and wanted to share; while far off from feature parity with the most popular production browsers today, we think it has made impressive progress in the last <1 week of wall time.

Given the interest in trying out the current state of the project, I've merged a more up-to-date snapshot of the system's progress that resolves issues with builds and CI. The experimental harness can occasionally leave the repo in an incomplete state but does converge, which was the case at the time of the post.

I'm here to answer any further questions you have.

[0] https://x.com/wilsonzlin/status/2012398625394221537?s=20

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2. eloisi+bn2[view] [source] 2026-01-17 06:51:37
>>wilson+ri2
That doesn’t really address much of the criticism in this thread. No one is shocked that it’s not as good as production web browsers. It’s that it was billed as “from scratch” but upon deeper inspection it looks like it’s just gluing together Servo and some other dependencies, so it’s not really as impressive or interesting because the “agents” didn’t really create a browser engine.
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3. M4v3R+To2[view] [source] 2026-01-17 07:19:11
>>eloisi+bn2
Upon deeper inspection? Someone checked the Cargo file and proclaimed it was just Servo and QuickJS glued together without actually bothering to look if these dependencies are even being used.

In reality while project does indeed have Servo in its dependencies it only uses it for HTML tokenization, CSS selector matching and some low level structures. Javascript parsing and execution, DOM implementation & Layout engine was written from scratch with only one exception - Flexbox and Grid layouts are implemented using Taffy - a Rust layout library.

So while “from scratch” is debatable it is still immensely impressive to be that AI was able to produce something that even just “kinda works” at this scale.

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