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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
DeepSeek
S
Elicit
S
TaglineVS Code fork that made AI coding actually work.Chinese open-weight powerhouse. Crazy cheap, genuinely smart.AI research assistant for academic literature.
Categorycodingchatresearch
PricingFree + $20/mo Pro + $40/mo BusinessFree web + ultra-cheap API (~$0.14/M input tokens)Free + $12-$42/mo
Best forDevelopers. Non-developers who want to ship working code.Developers + cost-conscious builders. Anyone fine with self-hosting.Grad students, researchers, anyone doing literature reviews.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Academic-only
  • Can hallucinate citations — verify everything
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.S-tier for academic research. Nothing else comes close for systematic reviews.
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