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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ChatGPT Operator B | Hume AI A | Rows A | Windsurf A | |
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| Tagline | OpenAI's browser agent. Clicks and types on websites for you. | Voice AI that reads + expresses emotion. | Spreadsheets with AI + live integrations baked in. | Codeium's agentic IDE. Cascade agent + strong free tier. |
| Category | Agents | Voice | Data | Coding |
| Pricing | Included with ChatGPT Pro $200/mo | Free tier + pay-as-you-go | Free + $19-$89/user/mo | Free + $15/mo Pro |
| Best for | Power users willing to pay $200/mo for a browser bot. | Therapy apps, customer service, any voice agent where emotion matters. | Ops teams, marketers, anyone building dashboards from multiple sources. | Developers who want Cursor-like power for less money. |
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| Kai's verdict | B-tier. Still early. Manus is more flexible for less money. | A-tier in its niche. The only one that actually gets emotion right. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. | A-tier. Close second to Cursor. If $5/mo matters, start here. |
| Link | Open → | Open → | Open → | Open → |