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 (4 selected)
Coding
Image
Productivity
Writing
Marketing
Cursor S | Grammarly A | Fathom S | Rows A | |
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| Tagline | VS Code fork that made AI coding actually work. | Grammar check + tone + AI drafting, everywhere you type. | Meeting notes, free forever for individuals. | Spreadsheets with AI + live integrations baked in. |
| Category | Coding | Writing | Meetings | Data |
| Pricing | Free + $20/mo Pro + $40/mo Business | Free + $12-$15/mo Premium + team plans | Free for individuals + $15-$29/user/mo teams | Free + $19-$89/user/mo |
| Best for | Developers. Non-developers who want to ship working code. | Non-native English writers, business email, anyone who types a lot. | Solo operators, freelancers, small teams on a budget. | Ops teams, marketers, anyone building dashboards from multiple sources. |
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| Kai's verdict | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone. | S-tier for solo + free. The best free option, hands down. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. |
| Link | Open → | Open → | Open → | Open → |