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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
Sora
A
Google Veo
A
HeyGen
S
TaglineCognition Labs' autonomous coding engineer.OpenAI's video model. Long clips, cinematic quality.Google's video model. Baked into Gemini + YouTube Shorts.AI avatar videos. Record once, speak any language.
CategoryAgentsVideoVideoVideo
Pricing$500/moIncluded with ChatGPT Plus/ProIncluded with Gemini Advanced $20/mo + YouTube creator toolsFree + $24-$65/mo
Best forEngineering teams offloading tickets. Ops/platform work.ChatGPT subscribers experimenting with cinematic shots.Gemini Advanced users, YouTube Shorts creators.Course creators, multilingual marketers, anyone scaling video content.
Strengths
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Included with Gemini Advanced
  • YouTube Shorts native integration
  • Strong prompt understanding
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
Weaknesses
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Still catching up on quality vs Kling/Runway
  • Less control than pros need
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
Kai's verdictA-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.A-tier if you already pay Gemini. B-tier standalone.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.
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