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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
Windsurf
A
Genspark
A
Flux (Black Forest Labs)
A
TaglineVS Code fork that made AI coding actually work.Codeium's agentic IDE. Cascade agent + strong free tier.AI agent for deep search. Generates Sparkpages — full mini-reports.Open weights + strong photorealism. The open-source answer.
Categorycodingcodingresearchimage
PricingFree + $20/mo Pro + $40/mo BusinessFree + $15/mo ProFree + $25/mo PlusAPI + open weights (Schnell is Apache 2.0)
Best forDevelopers. Non-developers who want to ship working code.Developers who want Cursor-like power for less money.Travel planning, shopping comparisons, deep research where you want an artifact back.Developers + power users who want control and privacy.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Sparkpages = curated multi-source mini-articles
  • Agent can book, compare, shop
  • Autopilot agent for long tasks
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Smaller community
  • Model selection more limited
  • Early-stage — rough edges
  • Less reliable than Perplexity for simple questions
  • Harder to use than hosted tools
  • Needs infra
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.A-tier. Close second to Cursor. If $5/mo matters, start here.A-tier. Bet on this one — the Sparkpage format is genuinely new.A-tier. S-tier if you self-host. The reason open-source image gen matters.
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