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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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Chatbots
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Perplexity
S
Windsurf
A
Rows
A
Writesonic
B
TaglineAI search done right. Cited answers, not chat theater.Codeium's agentic IDE. Cascade agent + strong free tier.Spreadsheets with AI + live integrations baked in.SEO-first AI writer. Optimized for ranking content.
CategoryResearchCodingDataMarketing
PricingFree + $20/mo ProFree + $15/mo ProFree + $19-$89/user/moFree + $15-$99/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Developers who want Cursor-like power for less money.Ops teams, marketers, anyone building dashboards from multiple sources.Content marketers churning out SEO articles.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • SEO built-in (Surfer integration)
  • Article generator for long-form
  • Chatsonic for research
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Smaller community
  • Model selection more limited
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Output quality behind Claude for polish
  • SEO automation can produce generic content
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. Close second to Cursor. If $5/mo matters, start here.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.B-tier. Use Claude + manual SEO thinking. Writesonic is fast but generic.
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