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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
S
GitHub Copilot
B
DALL-E 3
B
TaglineAI search done right. Cited answers, not chat theater.Anthropic's flagship — best reasoning + longest useful context.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.OpenAI's image model. Built into ChatGPT Plus.
Categoryresearchchatcodingimage
PricingFree + $20/mo ProFree + $20/mo Pro + team/enterpriseFree (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.Long writing, code, careful thinking, documents over 50 pages.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
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • 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
  • Image generation is weak
  • No native web search on all tiers
  • 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.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.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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