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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
Perplexity
S
Cursor
S
Groq
S
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.AI search done right. Cited answers, not chat theater.VS Code fork that made AI coding actually work.The fastest AI inference in the world. Crazy low latency.
Categorycodingresearchcodingdev platform
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree + $20/mo ProFree + $20/mo Pro + $40/mo BusinessFree tier + pay-as-you-go API
Best forTeams with GitHub already. Devs who don't want to change IDEs.Replacing Google for any question where you want a cited answer in seconds.Developers. Non-developers who want to ship working code.Developers who need sub-100ms LLM responses.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • 500+ tokens/sec on Llama/Mixtral — feels instant
  • Custom LPU hardware
  • Great free tier
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Open-weight models only (no Claude/GPT)
  • Less flexibility on custom configs
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for speed. When latency is the product, start here.
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