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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
Research
Coding
Image
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Agents
Dev Platform
Data
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Lex
A
Lovable
A
Windsurf
A
Perplexity
S
TaglineGoogle Docs with an AI collaborator baked in.Build a full app from a prompt. Stripe-ready.Codeium's agentic IDE. Cascade agent + strong free tier.AI search done right. Cited answers, not chat theater.
CategoryWritingDesignCodingResearch
PricingFree + $12/moFree + $25-$100/moFree + $15/mo ProFree + $20/mo Pro
Best forEssays, long-form drafts, thinking on the page.Non-devs + solopreneurs shipping MVPs.Developers who want Cursor-like power for less money.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Generates full apps + DB + auth
  • Good for non-developers
  • Ships faster than hand-coding
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Complexity ceiling
  • Can generate brittle code
  • Smaller community
  • Model selection more limited
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictA-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs.A-tier. Close second to Cursor. If $5/mo matters, start here.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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