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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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Sudowrite
S
GitHub Copilot
B
Reflect
A
Gamma
A
TaglineAI writing tool built specifically for fiction writers.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.AI-powered networked notes. Roam with a brain.AI slide decks that don't look AI-generated.
CategoryWritingCodingProductivityProductivity
Pricing$19-$59/moFree (limited) + $10/mo Pro + $19/mo Business$10/moFree + $10-$20/mo
Best forNovelists, screenwriters, fiction short-form writers.Teams with GitHub already. Devs who don't want to change IDEs.Knowledge workers + thinkers who want AI in their second brain.Pitch decks, proposals, internal presentations — fast.
Strengths
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • AI auto-links related notes
  • Generates backlinks + summaries
  • Clean, minimal UX
  • Strong templates
  • Decks, docs, webpages
  • Doesn't look generic
Weaknesses
  • Pricey for casual use
  • Fiction-only focus — not for business writing
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Expensive for just notes
  • Smaller community than Obsidian
  • Locked into Gamma's format
  • Export quality varies
Kai's verdictS-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Niche but beloved. If you've outgrown Notion, try this.A-tier. Best of a boring category. Use it for first drafts, then edit in Keynote if high-stakes.
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