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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v0 S | NotebookLM S | Rows A | HeyGen S | |
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| Tagline | Vercel's AI-powered UI generator. Prompt to shadcn component. | Google's research notebook. Turns your docs into a podcast. | Spreadsheets with AI + live integrations baked in. | AI avatar videos. Record once, speak any language. |
| Category | Design | Research | Data | Video |
| Pricing | Free + $20/mo | Free | Free + $19-$89/user/mo | Free + $24-$65/mo |
| Best for | Frontend devs, PMs prototyping UIs, anyone on Next.js. | Students, researchers, anyone with a stack of PDFs or a topic to learn. | Ops teams, marketers, anyone building dashboards from multiple sources. | Course creators, multilingual marketers, anyone scaling video content. |
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| Kai's verdict | S-tier. If you're on Vercel/shadcn, this is cheating. | S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. |
| Link | Open → | Open → | Open → | Open → |