AI builders compared

v0 vs B12

What 85 real websites made with them show, from our own scans: where they’re published, what they’re built with and what people make.

At a glance

How their sites differ

  • v0: 47 sites we found; B12: 38.
  • Most were on the builder’s own address, where our crawl finds them: 98% of v0’s and 100% of B12’s.
  • Of the sites whose kind we could tell, the most common is software or app for v0 (50%) and company or service site for B12 (67%).
  • Most often built with Next.js for v0 (100%) and jQuery for B12 (82%).
From our scans

Side by side

Each bar is a share of the sites we found made with that builder, as of 29 Oct 2026.

Where they’re published

Whatv0B12
b12sites.com0%0100%38
vusercontent.net83%390%0
vercel.app15%70%0
Their own domain2%10%0

Shares of each builder’s sites. Most examples come from the builders’ own addresses, where our crawl finds them, so sites on their own domain count for less here than they do on the web.

What they’re built with

Whatv0B12
Next.js100%470%0
jQuery0%082%31
Tailwind CSS4%218%7
Lucide13%68%3
Astro0%018%7

Shares of each builder’s sites.

What people make with them

Whatv0B12
Software or app50%133%1
Company or service site0%067%2
Online shop50%10%0

Shares of each builder’s sites whose kind of site we could tell.

How popular they are

Whatv0B12
Outside top 1M100%47100%38

Shares of each builder’s sites, by the public lists’ best rank.

Real examples

Sites made with each

Check a site

Made with v0, B12 or neither?

The AI Website Detector names the builder whose traces it finds, with the line it found them in.

Common questions

Which is better, v0 or B12?

We don’t rank builders. We show what the sites people publish with them have in common: where they’re published, what they’re built with and what people make, from 85 real examples. Which suits a project depends on the project.

How can I tell if a website was made with v0 or B12?

Enter its address in the AI Website Detector: it names the builder whose traces it finds, with the line it found them in. Code edited by hand or moved off the builder can leave none, so “none found” never proves a site wasn’t made with v0 or B12.

Where do these numbers come from?

From our scans, as of 29 Oct 2026: each site’s newest full result whose traces name the builder with high confidence, leaving out sites with phishing evidence, adult, gambling, finance and personal sites, money offers and untouched starter pages. They describe the sites we’ve found, not every site each builder has made.

v0 and B12 against other builders