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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
Elicit
S
Skye
A
Claude Code
S
TaglineVS Code fork that made AI coding actually work.AI research assistant for academic literature.An agentic iPhone home screen that replaces your static icon grid with AI widgets that proactively surface health, calendar, finance, and local context — without you having to open a single app.Anthropic's CLI agent. Opus-powered, operates on your repo directly.
CategoryCodingResearchAgentsCoding
PricingFree + $20/mo Pro + $40/mo BusinessFree + $12-$42/moWaitlist / Beta (pricing not yet disclosed)Part of Claude Pro/Max/Team plans
Best forDevelopers. Non-developers who want to ship working code.Grad students, researchers, anyone doing literature reviews.iPhone power users who are frustrated that Siri is still reactive and want their home screen to actually anticipate their day.Developers who want an agent, not autocomplete. Large refactors, tests, docs.
Strengths
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • Ambient, proactive intelligence delivered via native iOS widgets — no app-switching required
  • Cross-domain context: health, calendar, email, finances, and local recommendations in one layer
  • Works within iOS permission model (no jailbreak or sideloading), making App Store approval plausible
  • Strong pre-launch signal: 25k+ waitlist and backing from a16z, True Ventures, and SV Angel
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
Weaknesses
  • Can feel overwhelming for non-coders
  • Expensive at scale
  • Academic-only
  • Can hallucinate citations — verify everything
  • Still pre-launch / beta — zero proven track record and no public pricing yet
  • iPhone-only by design, which immediately locks out half the smartphone market
  • Battery drain and privacy concerns from constant ambient context scanning are real and unresolved
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
Kai's verdictS-tier for coding. If you write code of any kind, this pays back the $20 in a day.S-tier for academic research. Nothing else comes close for systematic reviews.The concept is genuinely compelling — turning the home screen into a living AI layer is a smarter bet than yet another chat interface — but this is vaporware until it ships publicly and we see whether Apple's sandbox lets it breathe. (Verdict pending Phi's full review.)S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.
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