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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
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Devin
A
Rows
A
Lex
A
Granola
S
TaglineCognition Labs' autonomous coding engineer.Spreadsheets with AI + live integrations baked in.Google Docs with an AI collaborator baked in.Meeting notes that don't suck. Runs locally, no bot joins.
CategoryAgentsDataWritingMeetings
Pricing$500/moFree + $19-$89/user/moFree + $12/moFree + $18/mo
Best forEngineering teams offloading tickets. Ops/platform work.Ops teams, marketers, anyone building dashboards from multiple sources.Essays, long-form drafts, thinking on the page.Founders, execs, consultants who live in calls.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • No bot in the call — runs on your Mac
  • Strong templates
  • Fast summaries
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Mac-only
  • Single-user by design
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier. Category-defining UX. If you take notes in meetings, switch this week.
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