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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
GitHub Copilot
B
Kling
A
Gemini
A
TaglineAI search done right. Cited answers, not chat theater.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Kuaishou's video model. The surprise standout.Google's answer. Best integrated with Workspace + free for a lot.
Categoryresearchcodingvideochat
PricingFree + $20/mo ProFree (limited) + $10/mo Pro + $19/mo BusinessCredit-based, free trialFree + $20/mo Advanced (bundled with 2TB Drive)
Best forReplacing Google for any question where you want a cited answer in seconds.Teams with GitHub already. Devs who don't want to change IDEs.Anyone who wants top-tier video quality for less.Anyone already on Google, research tasks, summarizing long documents.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Very strong motion + physics
  • Often beats Runway on realism
  • Great price
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • UX is rough for English speakers
  • Queue times
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
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. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Rising fast. If you can tolerate the UX, quality per dollar is best-in-class.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.
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