KaiAI tutor for anyone

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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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Gemini
A
Manus
S
Perplexity
S
TaglineGoogle's answer. Best integrated with Workspace + free for a lot.Autonomous AI agent that actually finishes tasks.AI search done right. Cited answers, not chat theater.
CategoryChatbotsAgentsResearch
PricingFree + $20/mo Advanced (bundled with 2TB Drive)Free tier + $39-$199/moFree + $20/mo Pro
Best forAnyone already on Google, research tasks, summarizing long documents.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • General-purpose agent — research, book, build, analyze
  • Parallel task execution
  • Web browsing + file creation + coding
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Still hit-or-miss on complex multi-hour tasks
  • Can burn credits fast
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictA-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.S-tier in the agent category. The first one I'd give to a non-technical friend.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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