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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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v0
S
Figma AI
A
GitHub Copilot
B
Claude Agent SDK
S
TaglineVercel's AI-powered UI generator. Prompt to shadcn component.AI features baked into the design tool you already use.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Anthropic's SDK for building your own agents on Claude.
CategoryDesignDesignCodingAgents
PricingFree + $20/moIncluded with Figma plansFree (limited) + $10/mo Pro + $19/mo BusinessAPI usage + SDK is free
Best forFrontend devs, PMs prototyping UIs, anyone on Next.js.Designers already on Figma.Teams with GitHub already. Devs who don't want to change IDEs.Developers building custom agents for their own company/product.
Strengths
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
  • First drafts with Make Designs
  • Rename/rearrange layers automatically
  • Natural language asset search
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
Weaknesses
  • Best for shadcn stack
  • Iterating can be fiddly
  • Features vary by plan + region
  • Still rolling out
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Developer-only
  • You build the UI
Kai's verdictS-tier. If you're on Vercel/shadcn, this is cheating.A-tier. No reason not to use it if you're on Figma. Not worth switching for.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for builders. The right primitives. What Kai is built on under the hood.
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