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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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Devin
A
Cline
A
Claude Code
S
GitHub Copilot
B
TaglineCognition Labs' autonomous coding engineer.Open-source VS Code agent. Reads + writes + runs.Anthropic's CLI agent. Opus-powered, operates on your repo directly.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.
Categoryagentscodingcodingcoding
Pricing$500/moFree (open source) + your API costsPart of Claude Pro/Max/Team plansFree (limited) + $10/mo Pro + $19/mo Business
Best forEngineering teams offloading tickets. Ops/platform work.VS Code users who want agentic coding without changing IDEs.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Teams with GitHub already. Devs who don't want to change IDEs.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • Less agentic than Cursor/Claude Code
  • Model quality varies
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. Best free agentic option in VS Code. Use with Claude for best results.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.
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