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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Hex A | Perplexity S | Udio A | NotebookLM S | |
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| Tagline | Modern data notebook with Magic AI assistant. | AI search done right. Cited answers, not chat theater. | Suno's main rival. Often better on instrumental nuance. | Google's research notebook. Turns your docs into a podcast. |
| Category | Data | Research | Audio | Research |
| Pricing | Free + $28+/user/mo | Free + $20/mo Pro | Free + $10-$30/mo | Free |
| Best for | Data teams at startups + enterprises. | Replacing Google for any question where you want a cited answer in seconds. | Musicians comparing AI outputs. Anyone who didn't click with Suno. | Students, researchers, anyone with a stack of PDFs or a topic to learn. |
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| Kai's verdict | A-tier for data teams. S-tier if you already live in SQL + Python. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | A-tier. Genuinely different vibe from Suno — worth trying both for a month. | S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs. |
| Link | Open → | Open → | Open → | Open → |