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.
Pick tools (3 selected)
Coding
Image
Productivity
Writing
Marketing
Hex A | Lex A | Writesonic B | |
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| Tagline | Modern data notebook with Magic AI assistant. | Google Docs with an AI collaborator baked in. | SEO-first AI writer. Optimized for ranking content. |
| Category | Data | Writing | Marketing |
| Pricing | Free + $28+/user/mo | Free + $12/mo | Free + $15-$99/mo |
| Best for | Data teams at startups + enterprises. | Essays, long-form drafts, thinking on the page. | Content marketers churning out SEO articles. |
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| Kai's verdict | A-tier for data teams. S-tier if you already live in SQL + Python. | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. | B-tier. Use Claude + manual SEO thinking. Writesonic is fast but generic. |
| Link | Open → | Open → | Open → |