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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
Video
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Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
Perplexity
S
Writesonic
B
Claude Code
S
Bolt.new (StackBlitz)
A
TaglineAI search done right. Cited answers, not chat theater.SEO-first AI writer. Optimized for ranking content.Anthropic's CLI agent. Opus-powered, operates on your repo directly.Prompt to deployed full-stack app in the browser.
CategoryResearchMarketingCodingCoding
PricingFree + $20/mo ProFree + $15-$99/moPart of Claude Pro/Max/Team plansFree + $20-$200/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Content marketers churning out SEO articles.Developers who want an agent, not autocomplete. Large refactors, tests, docs.PMs, founders, non-devs shipping MVPs.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • SEO built-in (Surfer integration)
  • Article generator for long-form
  • Chatsonic for research
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Full-stack generation + live preview
  • Deploy to Netlify in one click
  • Works in-browser — no install
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Output quality behind Claude for polish
  • SEO automation can produce generic content
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.B-tier. Use Claude + manual SEO thinking. Writesonic is fast but generic.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. Best for fast prototypes. Competitive with Lovable — try both.
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