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
Devin A | ChatGPT Operator B | Rows A | Sudowrite S | |
|---|---|---|---|---|
| Tagline | Cognition Labs' autonomous coding engineer. | OpenAI's browser agent. Clicks and types on websites for you. | Spreadsheets with AI + live integrations baked in. | AI writing tool built specifically for fiction writers. |
| Category | agents | agents | data | writing |
| Pricing | $500/mo | Included with ChatGPT Pro $200/mo | Free + $19-$89/user/mo | $19-$59/mo |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Power users willing to pay $200/mo for a browser bot. | Ops teams, marketers, anyone building dashboards from multiple sources. | Novelists, screenwriters, fiction short-form writers. |
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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. | B-tier. Still early. Manus is more flexible for less money. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. | S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time. |
| Link | Open → | Open → | Open → | Open → |