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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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Devin
A
Google Veo
A
Claude Code
S
v0
S
TaglineCognition Labs' autonomous coding engineer.Google's video model. Baked into Gemini + YouTube Shorts.Anthropic's CLI agent. Opus-powered, operates on your repo directly.Vercel's AI-powered UI generator. Prompt to shadcn component.
CategoryAgentsVideoCodingDesign
Pricing$500/moIncluded with Gemini Advanced $20/mo + YouTube creator toolsPart of Claude Pro/Max/Team plansFree + $20/mo
Best forEngineering teams offloading tickets. Ops/platform work.Gemini Advanced users, YouTube Shorts creators.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Frontend devs, PMs prototyping UIs, anyone on Next.js.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Best for shadcn stack
  • Iterating can be fiddly
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier if you already pay Gemini. B-tier standalone.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.S-tier. If you're on Vercel/shadcn, this is cheating.
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