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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
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Image
Meetings
Design
Productivity
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Data
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Rows
A
Hume AI
A
Recraft
S
Grammarly
A
TaglineSpreadsheets with AI + live integrations baked in.Voice AI that reads + expresses emotion.Vector + raster AI for designers. Actually controls the output.Grammar check + tone + AI drafting, everywhere you type.
CategoryDataVoiceImageWriting
PricingFree + $19-$89/user/moFree tier + pay-as-you-goFree + $12-$48/moFree + $12-$15/mo Premium + team plans
Best forOps teams, marketers, anyone building dashboards from multiple sources.Therapy apps, customer service, any voice agent where emotion matters.Designers, brand teams, anyone needing vector output or tight style control.Non-native English writers, business email, anyone who types a lot.
Strengths
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • Exports SVG vectors — rare in AI image gen
  • Strong style control + consistency
  • Brand kit for consistent outputs
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Niche use case
  • Pricing ramps fast
  • Less hyped than Midjourney
  • Learning curve for non-designers
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
Kai's verdictA-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier in its niche. The only one that actually gets emotion right.S-tier for designers. The only one that takes vectors seriously.A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.
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