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 | Claude Agent SDK S | |
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| Tagline | Meeting notes, free forever for individuals. | Anthropic's SDK for building your own agents on Claude. |
| Category | Meetings | Agents |
| Pricing | Free for individuals + $15-$29/user/mo teams | API usage + SDK is free |
| Best for | Solo operators, freelancers, small teams on a budget. | Developers building custom agents for their own company/product. |
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| Kai's verdict | S-tier for solo + free. The best free option, hands down. | S-tier for builders. The right primitives. What Kai is built on under the hood. |
| Link | Open → | Open → |