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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Fathom S | Gemini A | NotebookLM S | |
|---|---|---|---|
| Tagline | Meeting notes, free forever for individuals. | Google's answer. Best integrated with Workspace + free for a lot. | Google's research notebook. Turns your docs into a podcast. |
| Category | Meetings | Chatbots | Research |
| Pricing | Free for individuals + $15-$29/user/mo teams | Free + $20/mo Advanced (bundled with 2TB Drive) | Free |
| Best for | Solo operators, freelancers, small teams on a budget. | Anyone already on Google, research tasks, summarizing long documents. | Students, researchers, anyone with a stack of PDFs or a topic to learn. |
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| Kai's verdict | S-tier for solo + free. The best free option, hands down. | A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google. | S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs. |
| Link | Open → | Open → | Open → |