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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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Perplexity
S
Claude Code
S
Le Chat (Mistral)
B
Lex
A
TaglineAI search done right. Cited answers, not chat theater.Anthropic's CLI agent. Opus-powered, operates on your repo directly.French alternative. Fast, European, privacy-focused.Google Docs with an AI collaborator baked in.
Categoryresearchcodingchatwriting
PricingFree + $20/mo ProPart of Claude Pro/Max/Team plansFree + $15/mo ProFree + $12/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Developers who want an agent, not autocomplete. Large refactors, tests, docs.European users with data residency needs. Fans of open-weight models.Essays, long-form drafts, thinking on the page.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • European data residency
  • Very fast responses
  • Open-weight Mistral models available
  • Good French/European languages
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Smaller capability gap vs frontier models
  • Less polished UX
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.B-tier overall, A-tier if GDPR/data residency matters. Solid backup option.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
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