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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Coding
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Writing
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Devin A | Play.ht A | Hex A | Rows A | |
|---|---|---|---|---|
| Tagline | Cognition Labs' autonomous coding engineer. | Enterprise-grade TTS with voice cloning. | Modern data notebook with Magic AI assistant. | Spreadsheets with AI + live integrations baked in. |
| Category | Agents | Voice | Data | Data |
| Pricing | $500/mo | Free + $39-$99/mo | Free + $28+/user/mo | Free + $19-$89/user/mo |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Podcasters + enterprises where cost matters. | Data teams at startups + enterprises. | Ops teams, marketers, anyone building dashboards from multiple sources. |
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| Kai's verdict | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. | A-tier. Great price/performance. Go here if ElevenLabs is too expensive. | A-tier for data teams. S-tier if you already live in SQL + Python. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. |
| Link | Open → | Open → | Open → | Open → |