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TaglineOpen-source VS Code agent. Reads + writes + runs.AI search done right. Cited answers, not chat theater.Cognition Labs' autonomous coding engineer.Spreadsheets with AI + live integrations baked in.
CategoryCodingResearchAgentsData
PricingFree (open source) + your API costsFree + $20/mo Pro$500/moFree + $19-$89/user/mo
Best forVS Code users who want agentic coding without changing IDEs.Replacing Google for any question where you want a cited answer in seconds.Engineering teams offloading tickets. Ops/platform work.Ops teams, marketers, anyone building dashboards from multiple sources.
Strengths
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Pull live data from Stripe, Slack, Google Analytics, etc.
  • AI functions inside cells
  • Modern UX
Weaknesses
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Not a full Excel replacement for heavy users
  • Integrations best on paid tiers
Kai's verdictA-tier. Best free agentic option in VS Code. Use with Claude for best results.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. The most interesting spreadsheet in years. Great for ops dashboards.
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