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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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Dev Platform
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OpenRouter
S
Rows
A
Fireflies
A
v0
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Spreadsheets with AI + live integrations baked in.Sales-focused meeting AI with CRM integration.Vercel's AI-powered UI generator. Prompt to shadcn component.
CategoryDev PlatformDataMeetingsDesign
PricingPay per token — model-dependentFree + $19-$89/user/moFree + $10-$19/user/moFree + $20/mo
Best forDevelopers experimenting across models. Apps that want fallback logic.Ops teams, marketers, anyone building dashboards from multiple sources.Sales teams, customer success, anyone running many discovery calls.Frontend devs, PMs prototyping UIs, anyone on Next.js.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Good CRM integrations (Salesforce, HubSpot)
  • Talk-time + sentiment analytics
  • Call scoring
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Bot-joins (intrusive)
  • Gets expensive at team scale
  • Best for shadcn stack
  • Iterating can be fiddly
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier for sales teams. B-tier for solo users.S-tier. If you're on Vercel/shadcn, this is cheating.
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