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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Coding
Image
Productivity
Writing
Marketing
Fathom S | Runway S | Cursor S | ChatGPT Operator B | |
|---|---|---|---|---|
| Tagline | Meeting notes, free forever for individuals. | The pro's AI video tool. Gen-4 is the current bar. | VS Code fork that made AI coding actually work. | OpenAI's browser agent. Clicks and types on websites for you. |
| Category | Meetings | Video | Coding | Agents |
| Pricing | Free for individuals + $15-$29/user/mo teams | Free + $15-$95/mo | Free + $20/mo Pro + $40/mo Business | Included with ChatGPT Pro $200/mo |
| Best for | Solo operators, freelancers, small teams on a budget. | Marketing video, pitch decks, b-roll, creative shorts. | Developers. Non-developers who want to ship working code. | Power users willing to pay $200/mo for a browser bot. |
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| Kai's verdict | S-tier for solo + free. The best free option, hands down. | S-tier. Market leader with reason. Start here for serious video. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | B-tier. Still early. Manus is more flexible for less money. |
| Link | Open → | Open → | Open → | Open → |