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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Lovable A | Replicate S | v0 S | HeyGen S | |
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| Tagline | Build a full app from a prompt. Stripe-ready. | Run any open-source AI model with an API call. | Vercel's AI-powered UI generator. Prompt to shadcn component. | AI avatar videos. Record once, speak any language. |
| Category | Design | Dev Platform | Design | Video |
| Pricing | Free + $25-$100/mo | Pay per second of compute | Free + $20/mo | Free + $24-$65/mo |
| Best for | Non-devs + solopreneurs shipping MVPs. | Developers using open-source models (Flux, SDXL, Whisper, etc). | Frontend devs, PMs prototyping UIs, anyone on Next.js. | Course creators, multilingual marketers, anyone scaling video content. |
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| Kai's verdict | A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs. | S-tier for open-source model APIs. The default in this space. | S-tier. If you're on Vercel/shadcn, this is cheating. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. |
| Link | Open → | Open → | Open → | Open → |