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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Perplexity S | Pika A | HeyGen S | Lovable A | |
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| Tagline | AI search done right. Cited answers, not chat theater. | The playful, accessible AI video tool. | AI avatar videos. Record once, speak any language. | Build a full app from a prompt. Stripe-ready. |
| Category | Research | Video | Video | Design |
| Pricing | Free + $20/mo Pro | Free + $8-$58/mo | Free + $24-$65/mo | Free + $25-$100/mo |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Social media creators, beginners, anyone wanting quick fun clips. | Course creators, multilingual marketers, anyone scaling video content. | Non-devs + solopreneurs shipping MVPs. |
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| Kai's verdict | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | A-tier for social/casual. B-tier for serious work. Good entry point. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs. |
| Link | Open → | Open → | Open → | Open → |