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 | Windsurf A | Hex A | Replicate S | |
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| Tagline | Meeting notes, free forever for individuals. | Codeium's agentic IDE. Cascade agent + strong free tier. | Modern data notebook with Magic AI assistant. | Run any open-source AI model with an API call. |
| Category | Meetings | Coding | Data | Dev Platform |
| Pricing | Free for individuals + $15-$29/user/mo teams | Free + $15/mo Pro | Free + $28+/user/mo | Pay per second of compute |
| Best for | Solo operators, freelancers, small teams on a budget. | Developers who want Cursor-like power for less money. | Data teams at startups + enterprises. | Developers using open-source models (Flux, SDXL, Whisper, etc). |
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| Kai's verdict | S-tier for solo + free. The best free option, hands down. | A-tier. Close second to Cursor. If $5/mo matters, start here. | A-tier for data teams. S-tier if you already live in SQL + Python. | S-tier for open-source model APIs. The default in this space. |
| Link | Open → | Open → | Open → | Open → |