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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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Duolingo Max
A
Gemini
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S
TaglineSpreadsheets with AI + live integrations baked in.Duolingo + AI. Explain My Answer + Roleplay features.Google's answer. Best integrated with Workspace + free for a lot.Run any open-source AI model with an API call.
CategoryDataEducationChatbotsDev Platform
PricingFree + $19-$89/user/mo$30/mo (or ~$168/yr)Free + $20/mo Advanced (bundled with 2TB Drive)Pay per second of compute
Best forOps teams, marketers, anyone building dashboards from multiple sources.Language learners who've outgrown basic Duolingo.Anyone already on Google, research tasks, summarizing long documents.Developers using open-source models (Flux, SDXL, Whisper, etc).
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Explain My Answer = personal tutor for every mistake
  • Roleplay = real conversation practice
  • Gamification that actually sticks
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Pricey vs free Duolingo
  • Conversation AI still stiff sometimes
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Cold starts on less-popular models
  • Pricing gets real at scale
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. If you already love Duolingo, worth it. If starting fresh, try ChatGPT Voice instead.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.S-tier for open-source model APIs. The default in this space.
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