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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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Agents
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ChatGPT Operator
B
Hume AI
A
Manus
S
Rows
A
TaglineOpenAI's browser agent. Clicks and types on websites for you.Voice AI that reads + expresses emotion.Autonomous AI agent that actually finishes tasks.Spreadsheets with AI + live integrations baked in.
CategoryAgentsVoiceAgentsData
PricingIncluded with ChatGPT Pro $200/moFree tier + pay-as-you-goFree tier + $39-$199/moFree + $19-$89/user/mo
Best forPower users willing to pay $200/mo for a browser bot.Therapy apps, customer service, any voice agent where emotion matters.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Ops teams, marketers, anyone building dashboards from multiple sources.
Strengths
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Detects + mirrors emotional tone
  • EVI (Empathic Voice Interface) feels different
  • Expressive voice output
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
Weaknesses
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Niche use case
  • Pricing ramps fast
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
Kai's verdictB-tier. Still early. Manus is more flexible for less money.A-tier in its niche. The only one that actually gets emotion right.S-tier in the agent category. The first one I'd give to a non-technical friend.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.
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