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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
Rows
A
Fireflies
A
Sudowrite
S
Hume AI
A
TaglineSpreadsheets with AI + live integrations baked in.Sales-focused meeting AI with CRM integration.AI writing tool built specifically for fiction writers.Voice AI that reads + expresses emotion.
CategoryDataMeetingsWritingVoice
PricingFree + $19-$89/user/moFree + $10-$19/user/mo$19-$59/moFree tier + pay-as-you-go
Best forOps teams, marketers, anyone building dashboards from multiple sources.Sales teams, customer success, anyone running many discovery calls.Novelists, screenwriters, fiction short-form writers.Therapy apps, customer service, any voice agent where emotion matters.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Good CRM integrations (Salesforce, HubSpot)
  • Talk-time + sentiment analytics
  • Call scoring
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Bot-joins (intrusive)
  • Gets expensive at team scale
  • Pricey for casual use
  • Fiction-only focus — not for business writing
  • Niche use case
  • Pricing ramps fast
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier for sales teams. B-tier for solo users.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.A-tier in its niche. The only one that actually gets emotion right.
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