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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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Cursor
S
GitHub Copilot
B
Genspark
A
Perplexity
S
TaglineVS Code fork that made AI coding actually work.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.AI agent for deep search. Generates Sparkpages — full mini-reports.AI search done right. Cited answers, not chat theater.
Categorycodingcodingresearchresearch
PricingFree + $20/mo Pro + $40/mo BusinessFree (limited) + $10/mo Pro + $19/mo BusinessFree + $25/mo PlusFree + $20/mo Pro
Best forDevelopers. Non-developers who want to ship working code.Teams with GitHub already. Devs who don't want to change IDEs.Travel planning, shopping comparisons, deep research where you want an artifact back.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Sparkpages = curated multi-source mini-articles
  • Agent can book, compare, shop
  • Autopilot agent for long tasks
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Early-stage — rough edges
  • Less reliable than Perplexity for simple questions
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Bet on this one — the Sparkpage format is genuinely new.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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