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Perplexity
S
Duolingo Max
A
GitHub Copilot
B
Rows
A
TaglineAI search done right. Cited answers, not chat theater.Duolingo + AI. Explain My Answer + Roleplay features.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Spreadsheets with AI + live integrations baked in.
Categoryresearcheducationcodingdata
PricingFree + $20/mo Pro$30/mo (or ~$168/yr)Free (limited) + $10/mo Pro + $19/mo BusinessFree + $19-$89/user/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Language learners who've outgrown basic Duolingo.Teams with GitHub already. Devs who don't want to change IDEs.Ops teams, marketers, anyone building dashboards from multiple sources.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Explain My Answer = personal tutor for every mistake
  • Roleplay = real conversation practice
  • Gamification that actually sticks
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Pricey vs free Duolingo
  • Conversation AI still stiff sometimes
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier. If you already love Duolingo, worth it. If starting fresh, try ChatGPT Voice instead.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.
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