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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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Gemini
A
v0
S
Rows
A
Hume AI
A
TaglineGoogle's answer. Best integrated with Workspace + free for a lot.Vercel's AI-powered UI generator. Prompt to shadcn component.Spreadsheets with AI + live integrations baked in.Voice AI that reads + expresses emotion.
CategoryChatbotsDesignDataVoice
PricingFree + $20/mo Advanced (bundled with 2TB Drive)Free + $20/moFree + $19-$89/user/moFree tier + pay-as-you-go
Best forAnyone already on Google, research tasks, summarizing long documents.Frontend devs, PMs prototyping UIs, anyone on Next.js.Ops teams, marketers, anyone building dashboards from multiple sources.Therapy apps, customer service, any voice agent where emotion matters.
Strengths
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
Weaknesses
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Best for shadcn stack
  • Iterating can be fiddly
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Niche use case
  • Pricing ramps fast
Kai's verdictA-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.S-tier. If you're on Vercel/shadcn, this is cheating.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier in its niche. The only one that actually gets emotion right.
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