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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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Leonardo.ai
A
Lex
A
Perplexity
S
Sudowrite
S
TaglineGamer + creator image gen with model fine-tuning built in.Google Docs with an AI collaborator baked in.AI search done right. Cited answers, not chat theater.AI writing tool built specifically for fiction writers.
CategoryImageWritingResearchWriting
PricingFree + $12-$60/moFree + $12/moFree + $20/mo Pro$19-$59/mo
Best forIndie game devs, illustrators, anyone training custom style models.Essays, long-form drafts, thinking on the page.Replacing Google for any question where you want a cited answer in seconds.Novelists, screenwriters, fiction short-form writers.
Strengths
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
Weaknesses
  • General output behind Midjourney
  • Can be overwhelming
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Pricey for casual use
  • Fiction-only focus — not for business writing
Kai's verdictA-tier for creators training custom looks. B-tier for general use.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.
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