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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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Rows
A
Hume AI
A
Elicit
S
OpenRouter
S
TaglineSpreadsheets with AI + live integrations baked in.Voice AI that reads + expresses emotion.AI research assistant for academic literature.One API, every model. Pay-as-you-go, no subscriptions.
CategoryDataVoiceResearchDev Platform
PricingFree + $19-$89/user/moFree tier + pay-as-you-goFree + $12-$42/moPay per token — model-dependent
Best forOps teams, marketers, anyone building dashboards from multiple sources.Therapy apps, customer service, any voice agent where emotion matters.Grad students, researchers, anyone doing literature reviews.Developers experimenting across models. Apps that want fallback logic.
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
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
Weaknesses
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Niche use case
  • Pricing ramps fast
  • Academic-only
  • Can hallucinate citations — verify everything
  • Slight markup over direct API
  • Some provider features not exposed
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 academic research. Nothing else comes close for systematic reviews.S-tier for model-shopping. I use this for every prototype before committing.
LinkOpen →Open →Open →Open →