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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
Audio
Research
Agents
Coding
Chatbots
Image
Video
Voice
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Reflect
A
Rows
A
Claude
S
Le Chat (Mistral)
B
TaglineAI-powered networked notes. Roam with a brain.Spreadsheets with AI + live integrations baked in.Anthropic's flagship — best reasoning + longest useful context.French alternative. Fast, European, privacy-focused.
CategoryProductivityDataChatbotsChatbots
Pricing$10/moFree + $19-$89/user/moFree + $20/mo Pro + team/enterpriseFree + $15/mo Pro
Best forKnowledge workers + thinkers who want AI in their second brain.Ops teams, marketers, anyone building dashboards from multiple sources.Long writing, code, careful thinking, documents over 50 pages.European users with data residency needs. Fans of open-weight 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
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • European data residency
  • Very fast responses
  • Open-weight Mistral models available
  • Good French/European languages
Weaknesses
  • Expensive for just notes
  • Smaller community than Obsidian
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Image generation is weak
  • No native web search on all tiers
  • Smaller capability gap vs frontier models
  • Less polished UX
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.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.B-tier overall, A-tier if GDPR/data residency matters. Solid backup option.
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