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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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Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
Fathom
S
Lex
A
Sudowrite
S
Perplexity
S
TaglineMeeting notes, free forever for individuals.Google Docs with an AI collaborator baked in.AI writing tool built specifically for fiction writers.AI search done right. Cited answers, not chat theater.
CategoryMeetingsWritingWritingResearch
PricingFree for individuals + $15-$29/user/mo teamsFree + $12/mo$19-$59/moFree + $20/mo Pro
Best forSolo operators, freelancers, small teams on a budget.Essays, long-form drafts, thinking on the page.Novelists, screenwriters, fiction short-form writers.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Unlimited free tier for solo use
  • Strong summaries + action items
  • Works in Zoom, Meet, Teams
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Bot-joining model
  • Team features gated
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Pricey for casual use
  • Fiction-only focus — not for business writing
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for solo + free. The best free option, hands down.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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