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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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Replicate
S
MagicSchool
S
Sora
A
Elicit
S
TaglineRun any open-source AI model with an API call.AI platform built for teachers. Lesson plans + IEPs + admin.OpenAI's video model. Long clips, cinematic quality.AI research assistant for academic literature.
CategoryDev PlatformEducationVideoResearch
PricingPay per second of computeFree + $100/yr Plus + school plansIncluded with ChatGPT Plus/ProFree + $12-$42/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Teachers prepping materials. School districts.ChatGPT subscribers experimenting with cinematic shots.Grad students, researchers, anyone doing literature reviews.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • 60+ teacher-specific tools
  • Generous free tier
  • FERPA + COPPA compliant for schools
  • Up to 20-sec clips at 1080p
  • Strong physics + scene composition
  • Storyboard feature for longer narratives
  • Remix existing videos
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Teacher-only focus
  • Less useful for students
  • Stricter content policy than competitors
  • Hit-or-miss on complex motion
  • Text-in-video still struggles
  • Academic-only
  • Can hallucinate citations — verify everything
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for teachers. If you teach K-12, start here this week.A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros.S-tier for academic research. Nothing else comes close for systematic reviews.
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