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
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Productivity
Writing
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Devin A | Grok A | Lovable A | HeyGen S | |
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| Tagline | Cognition Labs' autonomous coding engineer. | xAI's chatbot. Real-time X/Twitter data + fewer refusals. | Build a full app from a prompt. Stripe-ready. | AI avatar videos. Record once, speak any language. |
| Category | Agents | Chatbots | Design | Video |
| Pricing | $500/mo | Free + $30/mo SuperGrok + included with X Premium | Free + $25-$100/mo | Free + $24-$65/mo |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Breaking news, live event tracking, users already on X. | Non-devs + solopreneurs shipping MVPs. | Course creators, multilingual marketers, anyone scaling video content. |
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| Kai's verdict | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. | A-tier for real-time. B-tier for everything else. Worth checking when news breaks. | A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. |
| Link | Open → | Open → | Open → | Open → |