Back to benchmarks
No-Code BenchmarkVerified 44 days ago

Agent UI Generation Benchmark

Which agents turn a prompt into a clean, responsive UI fastest? React + Tailwind dashboard edition.

v0, Bolt.new, Lovable, Claude CodeClaude 3.7 Sonnet2026-06-16
Winner:v0

Results dashboard

Overall score

v0
91
Lovable
86
Bolt.new
82
Claude Code
74

Time to complete

v0
8
Lovable
11
Bolt.new
14
Claude Code
26

Tokens used

v0
28,000
Lovable
34,000
Bolt.new
41,000
Claude Code
95,000

Approximate cost

v0
$0.75
Lovable
$0.95
Bolt.new
$1.10
Claude Code
$2.10

Results table

AgentScoreTimeCostPass
v0918m$0.75 Pass
Lovable8611m$0.95 Pass
Bolt.new8214m$1.10 Pass
Claude Code7426m$2.10 Pass

The task

Each agent was asked to generate a responsive React dashboard with:

  • Sidebar navigation
  • Metric cards
  • A simple line chart placeholder
  • A recent activity table
  • Mobile responsiveness
  • Tailwind CSS styling

Scoring rubric

Criterion Weight Max points
Visual fidelity 25% 25
Responsiveness 20% 20
Code cleanliness 20% 20
Speed to first render 20% 20
Customizability 15% 15

Methodology

  • Same prompt, no design references provided.
  • Output rendered in a clean Next.js project.
  • Evaluated on desktop and mobile viewport sizes.
  • We did not tune prompts for each tool.

Key findings

  • v0 remains the fastest path from prompt to clean React UI. Vercel integration is a plus.
  • Lovable produced the most visually refined result. Best when polish matters more than code ownership.
  • Bolt.new is the right choice if you want backend + frontend in one shot.
  • Claude Code can build UIs but is not the fastest tool for the job. Use it when the UI is part of a larger codebase.

Honest caveats

  • Dedicated UI tools are optimized for this exact task. Coding agents are generalists.
  • We tested one dashboard. Complex interactions, animations, or accessibility might change rankings.

When to choose which

  • v0: rapid UI prototyping and Vercel deployment.
  • Lovable: high-fidelity landing pages and dashboards.
  • Bolt.new: full-stack MVPs.
  • Claude Code: UI work inside an existing product codebase.