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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Windsurf
A
Gemini
A
Manus
S
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.Google's answer. Best integrated with Workspace + free for a lot.Autonomous AI agent that actually finishes tasks.
Categorycodingchatagents
PricingFree + $15/mo ProFree + $20/mo Advanced (bundled with 2TB Drive)Free tier + $39-$199/mo
Best forDevelopers who want Cursor-like power for less money.Anyone already on Google, research tasks, summarizing long documents.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • 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
Weaknesses
  • Smaller community
  • Model selection more limited
  • 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
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.A-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.
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