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.
Pick tools (4 selected)
Coding
Image
Productivity
Writing
Marketing
Lex A | HeyGen S | Ideogram S | Luma Dream Machine A | |
|---|---|---|---|---|
| Tagline | Google Docs with an AI collaborator baked in. | AI avatar videos. Record once, speak any language. | The one that actually gets text in images right. | Smooth, cinematic motion. Image-to-video specialist. |
| Category | Writing | Video | Image | Video |
| Pricing | Free + $12/mo | Free + $24-$65/mo | Free + $8/mo + $20/mo + $60/mo | Free + $10-$500/mo |
| Best for | Essays, long-form drafts, thinking on the page. | Course creators, multilingual marketers, anyone scaling video content. | Anything with text — posters, ads, album covers, slide decks. | Photographers animating stills, cinematic b-roll. |
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| Kai's verdict | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | S-tier for text-in-image. Use this for posters, Midjourney for art. | A-tier. Best for cinematic image-to-video. Pair with Runway for coverage. |
| Link | Open → | Open → | Open → | Open → |