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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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Coding
Agents
Research
Chatbots
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Dev Platform
Data
Marketing
Education
Manus
S
Lex
A
Rows
A
Kling
A
TaglineAutonomous AI agent that actually finishes tasks.Google Docs with an AI collaborator baked in.Spreadsheets with AI + live integrations baked in.Kuaishou's video model. The surprise standout.
CategoryAgentsWritingDataVideo
PricingFree tier + $39-$199/moFree + $12/moFree + $19-$89/user/moCredit-based, free trial
Best forPeople who want to hand off tasks entirely — trip planning, research, spreadsheet building.Essays, long-form drafts, thinking on the page.Ops teams, marketers, anyone building dashboards from multiple sources.Anyone who wants top-tier video quality for less.
Strengths
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
Weaknesses
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • UX is rough for English speakers
  • Queue times
Kai's verdictS-tier in the agent category. The first one I'd give to a non-technical friend.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.
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