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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
Windsurf
A
Gemini
A
Julius
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Codeium's agentic IDE. Cascade agent + strong free tier.Google's answer. Best integrated with Workspace + free for a lot.Chat with your data. Upload a CSV, ask questions, get charts.
Categorycodingcodingchatdata
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree + $15/mo ProFree + $20/mo Advanced (bundled with 2TB Drive)Free + $20-$65/mo
Best forTeams with GitHub already. Devs who don't want to change IDEs.Developers who want Cursor-like power for less money.Anyone already on Google, research tasks, summarizing long documents.Analysts, founders, anyone with a spreadsheet + a question.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • 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
  • Handles complex CSVs + spreadsheets
  • Generates real Python analysis + charts
  • No technical setup
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Smaller community
  • Model selection more limited
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • File size limits
  • Can hallucinate on messy data
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-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 for ad-hoc analysis. Makes you feel like a data scientist in 30 seconds.
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