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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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Devin
A
Google Veo
A
Sudowrite
S
TaglineCognition Labs' autonomous coding engineer.Google's video model. Baked into Gemini + YouTube Shorts.AI writing tool built specifically for fiction writers.
CategoryAgentsVideoWriting
Pricing$500/moIncluded with Gemini Advanced $20/mo + YouTube creator tools$19-$59/mo
Best forEngineering teams offloading tickets. Ops/platform work.Gemini Advanced users, YouTube Shorts creators.Novelists, screenwriters, fiction short-form writers.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Brainstorm, expand, rewrite modes designed for fiction
  • Story Bible for character + plot tracking
  • Understands voice + tone better than generic chatbots
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Pricey for casual use
  • Fiction-only focus — not for business writing
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier if you already pay Gemini. B-tier standalone.S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.
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