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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
Cline
A
Perplexity
S
Flux (Black Forest Labs)
A
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Open-source VS Code agent. Reads + writes + runs.AI search done right. Cited answers, not chat theater.Open weights + strong photorealism. The open-source answer.
Categorycodingcodingresearchimage
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree (open source) + your API costsFree + $20/mo ProAPI + open weights (Schnell is Apache 2.0)
Best forTeams with GitHub already. Devs who don't want to change IDEs.VS Code users who want agentic coding without changing IDEs.Replacing Google for any question where you want a cited answer in seconds.Developers + power users who want control and privacy.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • 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
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Harder to use than hosted tools
  • Needs infra
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-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. S-tier if you self-host. The reason open-source image gen matters.
LinkOpen →Open →Open →Open →