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)
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Perplexity S | NotebookLM S | Lovable A | Gemini A | |
|---|---|---|---|---|
| Tagline | AI search done right. Cited answers, not chat theater. | Google's research notebook. Turns your docs into a podcast. | Build a full app from a prompt. Stripe-ready. | Google's answer. Best integrated with Workspace + free for a lot. |
| Category | research | research | design | chat |
| Pricing | Free + $20/mo Pro | Free | Free + $25-$100/mo | Free + $20/mo Advanced (bundled with 2TB Drive) |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Students, researchers, anyone with a stack of PDFs or a topic to learn. | Non-devs + solopreneurs shipping MVPs. | Anyone already on Google, research tasks, summarizing long documents. |
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| Kai's verdict | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs. | A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs. | A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google. |
| Link | Open → | Open → | Open → | Open → |