KaiAI tutor for anyone

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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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A
OpenRouter
S
Windsurf
A
TaglineSpreadsheets with AI + live integrations baked in.One API, every model. Pay-as-you-go, no subscriptions.Codeium's agentic IDE. Cascade agent + strong free tier.
CategoryDataDev PlatformCoding
PricingFree + $19-$89/user/moPay per token — model-dependentFree + $15/mo Pro
Best forOps teams, marketers, anyone building dashboards from multiple sources.Developers experimenting across models. Apps that want fallback logic.Developers who want Cursor-like power for less money.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Slight markup over direct API
  • Some provider features not exposed
  • Smaller community
  • Model selection more limited
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for model-shopping. I use this for every prototype before committing.A-tier. Close second to Cursor. If $5/mo matters, start here.
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