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)
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productivity
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Replicate S | Fathom S | Runway S | Lovable A | |
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| Tagline | Run any open-source AI model with an API call. | Meeting notes, free forever for individuals. | The pro's AI video tool. Gen-4 is the current bar. | Build a full app from a prompt. Stripe-ready. |
| Category | dev platform | meeting | video | design |
| Pricing | Pay per second of compute | Free for individuals + $15-$29/user/mo teams | Free + $15-$95/mo | Free + $25-$100/mo |
| Best for | Developers using open-source models (Flux, SDXL, Whisper, etc). | Solo operators, freelancers, small teams on a budget. | Marketing video, pitch decks, b-roll, creative shorts. | Non-devs + solopreneurs shipping MVPs. |
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| Kai's verdict | S-tier for open-source model APIs. The default in this space. | S-tier for solo + free. The best free option, hands down. | S-tier. Market leader with reason. Start here for serious video. | A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs. |
| Link | Open → | Open → | Open → | Open → |