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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
Rows
A
Claude
S
Windsurf
A
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Spreadsheets with AI + live integrations baked in.Anthropic's flagship — best reasoning + longest useful context.Codeium's agentic IDE. Cascade agent + strong free tier.
Categorycodingdatachatcoding
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree + $19-$89/user/moFree + $20/mo Pro + team/enterpriseFree + $15/mo Pro
Best forTeams with GitHub already. Devs who don't want to change IDEs.Ops teams, marketers, anyone building dashboards from multiple sources.Long writing, code, careful thinking, documents over 50 pages.Developers who want Cursor-like power for less money.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Image generation is weak
  • No native web search on all tiers
  • Smaller community
  • Model selection more limited
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.A-tier. Close second to Cursor. If $5/mo matters, start here.
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