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 | Rows A | HeyGen S | Stable Audio A | |
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| Tagline | Meeting notes, free forever for individuals. | Spreadsheets with AI + live integrations baked in. | AI avatar videos. Record once, speak any language. | Stability AI's open audio model. Loops + SFX + background. |
| Category | Meetings | Data | Video | Audio |
| Pricing | Free for individuals + $15-$29/user/mo teams | Free + $19-$89/user/mo | Free + $24-$65/mo | Free + $12/mo Pro + enterprise |
| Best for | Solo operators, freelancers, small teams on a budget. | Ops teams, marketers, anyone building dashboards from multiple sources. | Course creators, multilingual marketers, anyone scaling video content. | Game developers, podcasters needing SFX, video creators needing background music. |
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| Kai's verdict | S-tier for solo + free. The best free option, hands down. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | A-tier for its niche. Different use case than Suno — SFX and loops, not songs. |
| Link | Open → | Open → | Open → | Open → |