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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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GitHub Copilot
B
Le Chat (Mistral)
B
Perplexity
S
Bolt.new (StackBlitz)
A
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.French alternative. Fast, European, privacy-focused.AI search done right. Cited answers, not chat theater.Prompt to deployed full-stack app in the browser.
Categorycodingchatresearchcoding
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree + $15/mo ProFree + $20/mo ProFree + $20-$200/mo
Best forTeams with GitHub already. Devs who don't want to change IDEs.European users with data residency needs. Fans of open-weight models.Replacing Google for any question where you want a cited answer in seconds.PMs, founders, non-devs shipping MVPs.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • European data residency
  • Very fast responses
  • Open-weight Mistral models available
  • Good French/European languages
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Full-stack generation + live preview
  • Deploy to Netlify in one click
  • Works in-browser — no install
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Smaller capability gap vs frontier models
  • Less polished UX
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.B-tier overall, A-tier if GDPR/data residency matters. Solid backup option.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. Best for fast prototypes. Competitive with Lovable — try both.
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