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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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GitHub Copilot
B
v0
S
Gemini
A
Manus
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Vercel's AI-powered UI generator. Prompt to shadcn component.Google's answer. Best integrated with Workspace + free for a lot.Autonomous AI agent that actually finishes tasks.
Categorycodingdesignchatagents
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree + $20/moFree + $20/mo Advanced (bundled with 2TB Drive)Free tier + $39-$199/mo
Best forTeams with GitHub already. Devs who don't want to change IDEs.Frontend devs, PMs prototyping UIs, anyone on Next.js.Anyone already on Google, research tasks, summarizing long documents.People who want to hand off tasks entirely — trip planning, research, spreadsheet building.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Ships working React + Tailwind code
  • Shadcn/ui native
  • One-click deploy to Vercel
  • 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
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Best for shadcn stack
  • Iterating can be fiddly
  • 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 verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier. If you're on Vercel/shadcn, this is cheating.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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