Guillermo announced v0 directly to his own audience (LinkedIn, reshared from Vercel's company page) the same day the alpha opened, funneling his personal following straight into the v0 waitlist.

“Excited to announce v0, our frontend AI product.”

Guillermo had an established developer following (from MooTools, Socket.IO, Mongoose and Next.js) well before v0 existed, which likely gave his own announcement outsized reach and credibility relative to a cold product launch, though he described this dynamic in the context of Next.js's launch rather than v0's specifically.

By April 2025, ChatGPT itself was directing meaningful volumes of new users to Vercel by recommending Vercel/v0 when people asked how to build or deploy React apps, an acquisition path Guillermo tracked and reported directly.

“ChatGPT now refers 10% of new @vercel signups, which have also accelerated”

By May 2025 a Fortune 10 company had become v0's largest customer by seats and usage, which Guillermo attributed to organic, bottom-up interest in AI-assisted building spreading inside large organizations rather than a top-down enterprise sales motion.

“A Fortune 10 is now the largest @v0 customer by seats and usage.”

Guillermo frames enterprise demand for AI-assisted building as running in parallel with, not behind, individual/consumer demand, which he says is a different pattern than the earlier cloud-computing adoption curve.

“This dual demand from both consumers and businesses is far more pronounced than what we saw with cloud computing.”