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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
HeyGen
S
Google Veo
A
Gemini
A
TaglineVercel's AI-powered UI generator. Prompt to shadcn component.AI avatar videos. Record once, speak any language.Google's video model. Baked into Gemini + YouTube Shorts.Google's answer. Best integrated with Workspace + free for a lot.
CategoryDesignVideoVideoChatbots
PricingFree + $20/moFree + $24-$65/moIncluded with Gemini Advanced $20/mo + YouTube creator toolsFree + $20/mo Advanced (bundled with 2TB Drive)
Best forFrontend devs, PMs prototyping UIs, anyone on Next.js.Course creators, multilingual marketers, anyone scaling video content.Gemini Advanced users, YouTube Shorts creators.Anyone already on Google, research tasks, summarizing long documents.
Strengths
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
Weaknesses
  • Best for shadcn stack
  • Iterating can be fiddly
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
Kai's verdictS-tier. If you're on Vercel/shadcn, this is cheating.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.A-tier if you already pay Gemini. B-tier standalone.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.
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