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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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Reflect
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Gemini
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Leonardo.ai
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TaglineAI-powered networked notes. Roam with a brain.Spreadsheets with AI + live integrations baked in.Google's answer. Best integrated with Workspace + free for a lot.Gamer + creator image gen with model fine-tuning built in.
CategoryProductivityDataChatbotsImage
Pricing$10/moFree + $19-$89/user/moFree + $20/mo Advanced (bundled with 2TB Drive)Free + $12-$60/mo
Best forKnowledge workers + thinkers who want AI in their second brain.Ops teams, marketers, anyone building dashboards from multiple sources.Anyone already on Google, research tasks, summarizing long documents.Indie game devs, illustrators, anyone training custom style models.
Strengths
  • AI auto-links related notes
  • Generates backlinks + summaries
  • Clean, minimal UX
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
Weaknesses
  • Expensive for just notes
  • Smaller community than Obsidian
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • General output behind Midjourney
  • Can be overwhelming
Kai's verdictA-tier. Niche but beloved. If you've outgrown Notion, try this.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.A-tier for creators training custom looks. B-tier for general use.
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