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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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Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
Rows
A
NotebookLM
S
Fireflies
A
Devin
A
TaglineSpreadsheets with AI + live integrations baked in.Google's research notebook. Turns your docs into a podcast.Sales-focused meeting AI with CRM integration.Cognition Labs' autonomous coding engineer.
CategoryDataResearchMeetingsAgents
PricingFree + $19-$89/user/moFreeFree + $10-$19/user/mo$500/mo
Best forOps teams, marketers, anyone building dashboards from multiple sources.Students, researchers, anyone with a stack of PDFs or a topic to learn.Sales teams, customer success, anyone running many discovery calls.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Upload anything, ask questions, get cited answers
  • Audio Overview turns docs into a 10-min podcast
  • Great for studying
  • Good CRM integrations (Salesforce, HubSpot)
  • Talk-time + sentiment analytics
  • Call scoring
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Google-only
  • Can be slow on large corpora
  • Bot-joins (intrusive)
  • Gets expensive at team scale
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs.A-tier for sales teams. B-tier for solo users.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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