Can AI Really Build Your Frontend? I Put lovable.dev and Vercel v0 to the Test

The Setup

I started with a prompt to Claude Sonnet 4:

write me a simple PRD for a portfolio page of a UI/UX designer, with a solid hero section with the name in bold, an about me section with an image placeholder and some text, a projects display section which can be a beautiful looking carousel, and a contact form which takes in email, name and content to write, as well as a bold footer with social links

To keep it fair for both tools, I used:

• The same product requirements (PRD)
• The base free version of both tools
• A blank slate for both tools

Goal

I wasn’t looking for something 100% production-ready. The goal was to see:

• How close each tool gets to a usable interface withoneprompt
• How clean the code is
• Whether the tool is helpful forreal frontend workflows

Tool 1: Lovable

What it’s like: Lovable feels like Figma + ChatGPT. You write a prompt and it spits out a polished layout with components you can tweak visually.

What stood out (Lovable):

• The design output looks clean and modern — actually pretty good-looking
• Supports TypeScript and works well with libraries like shadcn/ui and lucide-react
• Gives you a full project setup with visible folder structure and all dependencies preconfigured

Where it falls short

• Layouts aren’t always responsive — needs manual fixes
• Feels more like a prototyping tool; you’ll still need to polish things before using it in real projects

Tool 2: v0 by Vercel

What it’s like: v0 is like “AI-powered dev.” It is more suitable for frontend developers who need UI scaffolding or rapid prototyping

What I liked (Vercel v0):

• Works nicely with TypeScript and UI libraries like shadcn/ui and lucide-react (makes sense — they’re all from the Vercel ecosystem)
• LOVED THE FEATURE WITH WHICH YOU CAN SPECIFICALLY SELECT A CERTAIN COMPONENT AND PROMPT FOR CHANGES ONTO IT

What felt off:

• Responsiveness could definitely be better
• Didn’t feel super dev-friendly — I couldn’t clearly see which packages were being used, and there wasn’t a full project structure to explore

Final Verdict

Here’s what I think:

• Lovable is really great for fast layout ideas, following better design principles and getting unstuck visually. But not ready for prod.
• Vercel v0 gave clean code, however it wasn't the most reusable code, great for devs who want quick Tailwind templates. But needs polish in design output.

If I was building a pitch deck, landing page, or wireframe — I’d use Lovable If I wanted real code to plug into a Next.js app , Vercel v0 is my pick.