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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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Lex
A
DALL-E 3
B
Cursor
S
TaglineGoogle Docs with an AI collaborator baked in.OpenAI's image model. Built into ChatGPT Plus.VS Code fork that made AI coding actually work.
Categorywritingimagecoding
PricingFree + $12/moIncluded with ChatGPT Plus $20/moFree + $20/mo Pro + $40/mo Business
Best forEssays, long-form drafts, thinking on the page.ChatGPT Plus users who want images without paying extra.Developers. Non-developers who want to ship working code.
Strengths
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Tab completion feels like mind-reading
  • Composer for multi-file edits
  • Runs Claude, GPT, Gemini — you pick
Weaknesses
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Can feel overwhelming for non-coders
  • Expensive at scale
Kai's verdictA-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier for coding. If you write code of any kind, this pays back the $20 in a day.
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