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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
Groq
S
Devin
A
Cline
A
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.The fastest AI inference in the world. Crazy low latency.Cognition Labs' autonomous coding engineer.Open-source VS Code agent. Reads + writes + runs.
Categorycodingdev platformagentscoding
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree tier + pay-as-you-go API$500/moFree (open source) + your API costs
Best forTeams with GitHub already. Devs who don't want to change IDEs.Developers who need sub-100ms LLM responses.Engineering teams offloading tickets. Ops/platform work.VS Code users who want agentic coding without changing IDEs.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
  • 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
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Can burn tokens fast if not watched
  • Less polished than Cursor
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for speed. When latency is the product, start here.A-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.
LinkOpen →Open →Open →Open →