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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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Claude Code
S
Lex
A
ChatGPT Operator
B
Perplexity
S
TaglineAnthropic's CLI agent. Opus-powered, operates on your repo directly.Google Docs with an AI collaborator baked in.OpenAI's browser agent. Clicks and types on websites for you.AI search done right. Cited answers, not chat theater.
Categorycodingwritingagentsresearch
PricingPart of Claude Pro/Max/Team plansFree + $12/moIncluded with ChatGPT Pro $200/moFree + $20/mo Pro
Best forDevelopers who want an agent, not autocomplete. Large refactors, tests, docs.Essays, long-form drafts, thinking on the page.Power users willing to pay $200/mo for a browser bot.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.B-tier. Still early. Manus is more flexible for less money.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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