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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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Leonardo.ai
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Gemini
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Replit Agent
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TaglineSpreadsheets with AI + live integrations baked in.Gamer + creator image gen with model fine-tuning built in.Google's answer. Best integrated with Workspace + free for a lot.Replit's AI that builds + deploys full apps on their platform.
CategoryDataImageChatbotsCoding
PricingFree + $19-$89/user/moFree + $12-$60/moFree + $20/mo Advanced (bundled with 2TB Drive)$10-$25/mo Core/Teams
Best forOps teams, marketers, anyone building dashboards from multiple sources.Indie game devs, illustrators, anyone training custom style models.Anyone already on Google, research tasks, summarizing long documents.Teachers, students, prototypers, hackathon builders.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Full-stack + DB + auth + deploy in one environment
  • Great for teaching/learning
  • Runs everything in-browser
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • General output behind Midjourney
  • Can be overwhelming
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Locked into Replit hosting
  • Less code quality than dedicated IDEs
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier for creators training custom looks. B-tier for general use.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.A-tier. Best for teaching a kid to code in 2026.
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