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
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Productivity
Writing
Marketing
ChatGPT Operator B | Lex A | Runway S | |
|---|---|---|---|
| Tagline | OpenAI's browser agent. Clicks and types on websites for you. | Google Docs with an AI collaborator baked in. | The pro's AI video tool. Gen-4 is the current bar. |
| Category | Agents | Writing | Video |
| Pricing | Included with ChatGPT Pro $200/mo | Free + $12/mo | Free + $15-$95/mo |
| Best for | Power users willing to pay $200/mo for a browser bot. | Essays, long-form drafts, thinking on the page. | Marketing video, pitch decks, b-roll, creative shorts. |
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| Kai's verdict | B-tier. Still early. Manus is more flexible for less money. | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. | S-tier. Market leader with reason. Start here for serious video. |
| Link | Open → | Open → | Open → |