Compare AI tools
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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Dev Platform
Agents
Video
Coding
Image
Productivity
Writing
Marketing
Descript S | Perplexity S | MagicSchool S | Luma Dream Machine A | |
|---|---|---|---|---|
| Tagline | Edit video + podcasts by editing the transcript. | AI search done right. Cited answers, not chat theater. | AI platform built for teachers. Lesson plans + IEPs + admin. | Smooth, cinematic motion. Image-to-video specialist. |
| Category | Video | Research | Education | Video |
| Pricing | Free + $16-$50/mo | Free + $20/mo Pro | Free + $100/yr Plus + school plans | Free + $10-$500/mo |
| Best for | Podcasters, course creators, anyone editing talking-head content. | Replacing Google for any question where you want a cited answer in seconds. | Teachers prepping materials. School districts. | Photographers animating stills, cinematic b-roll. |
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| Kai's verdict | S-tier for content creators. Cuts editing time in half. Non-obvious but life-changing. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | S-tier for teachers. If you teach K-12, start here this week. | A-tier. Best for cinematic image-to-video. Pair with Runway for coverage. |
| Link | Open → | Open → | Open → | Open → |