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 | Replicate S | Ideogram S | Runway S | |
|---|---|---|---|---|
| Tagline | Meeting notes, free forever for individuals. | Run any open-source AI model with an API call. | The one that actually gets text in images right. | The pro's AI video tool. Gen-4 is the current bar. |
| Category | Meetings | Dev Platform | Image | Video |
| Pricing | Free for individuals + $15-$29/user/mo teams | Pay per second of compute | Free + $8/mo + $20/mo + $60/mo | Free + $15-$95/mo |
| Best for | Solo operators, freelancers, small teams on a budget. | Developers using open-source models (Flux, SDXL, Whisper, etc). | Anything with text — posters, ads, album covers, slide decks. | Marketing video, pitch decks, b-roll, creative shorts. |
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| Kai's verdict | S-tier for solo + free. The best free option, hands down. | S-tier for open-source model APIs. The default in this space. | S-tier for text-in-image. Use this for posters, Midjourney for art. | S-tier. Market leader with reason. Start here for serious video. |
| Link | Open → | Open → | Open → | Open → |