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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
Gemini
A
GitHub Copilot
B
DALL-E 3
B
TaglineAI search done right. Cited answers, not chat theater.Google's answer. Best integrated with Workspace + free for a lot.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.OpenAI's image model. Built into ChatGPT Plus.
Categoryresearchchatcodingimage
PricingFree + $20/mo ProFree + $20/mo Advanced (bundled with 2TB Drive)Free (limited) + $10/mo Pro + $19/mo BusinessIncluded with ChatGPT Plus $20/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Anyone already on Google, research tasks, summarizing long documents.Teams with GitHub already. Devs who don't want to change IDEs.ChatGPT Plus users who want images without paying extra.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
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. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.
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