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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
Genspark
A
GitHub Copilot
B
Devin
A
TaglineVS Code fork that made AI coding actually work.AI agent for deep search. Generates Sparkpages — full mini-reports.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Cognition Labs' autonomous coding engineer.
Categorycodingresearchcodingagents
PricingFree + $20/mo Pro + $40/mo BusinessFree + $25/mo PlusFree (limited) + $10/mo Pro + $19/mo Business$500/mo
Best forDevelopers. Non-developers who want to ship working code.Travel planning, shopping comparisons, deep research where you want an artifact back.Teams with GitHub already. Devs who don't want to change IDEs.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Sparkpages = curated multi-source mini-articles
  • Agent can book, compare, shop
  • Autopilot agent for long tasks
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Early-stage — rough edges
  • Less reliable than Perplexity for simple questions
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier. Bet on this one — the Sparkpage format is genuinely new.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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