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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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TaglineOpen-source VS Code agent. Reads + writes + runs.Spreadsheets with AI + live integrations baked in.Google's video model. Baked into Gemini + YouTube Shorts.Terminal-based AI pair programmer. Git-aware, model-flexible.
CategoryCodingDataVideoCoding
PricingFree (open source) + your API costsFree + $19-$89/user/moIncluded with Gemini Advanced $20/mo + YouTube creator toolsFree (open source) + whatever API you use
Best forVS Code users who want agentic coding without changing IDEs.Ops teams, marketers, anyone building dashboards from multiple sources.Gemini Advanced users, YouTube Shorts creators.Developers who want open-source tooling with full control.
Strengths
  • 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
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
Weaknesses
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
Kai's verdictA-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 if you already pay Gemini. B-tier standalone.A-tier. The right answer if you want open-source + terminal-native + model-agnostic.
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