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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
Cline
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Rows
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Gemini
A
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.Open-source VS Code agent. Reads + writes + runs.Spreadsheets with AI + live integrations baked in.Google's answer. Best integrated with Workspace + free for a lot.
CategoryCodingCodingDataChatbots
PricingFree + $15/mo ProFree (open source) + your API costsFree + $19-$89/user/moFree + $20/mo Advanced (bundled with 2TB Drive)
Best forDevelopers who want Cursor-like power for less money.VS Code users who want agentic coding without changing IDEs.Ops teams, marketers, anyone building dashboards from multiple sources.Anyone already on Google, research tasks, summarizing long documents.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
Weaknesses
  • Smaller community
  • Model selection more limited
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.A-tier. Best free agentic option in VS Code. Use with Claude for best results.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.
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