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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Claude Code S | Perplexity S | HeyGen S | Khanmigo S | |
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| Tagline | Anthropic's CLI agent. Opus-powered, operates on your repo directly. | AI search done right. Cited answers, not chat theater. | AI avatar videos. Record once, speak any language. | Khan Academy's AI tutor. Socratic method, built for learning. |
| Category | Coding | Research | Video | Education |
| Pricing | Part of Claude Pro/Max/Team plans | Free + $20/mo Pro | Free + $24-$65/mo | $4/mo (free for teachers) |
| Best for | Developers who want an agent, not autocomplete. Large refactors, tests, docs. | Replacing Google for any question where you want a cited answer in seconds. | Course creators, multilingual marketers, anyone scaling video content. | Students K-12. Parents helping with homework. Teachers prepping lessons. |
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| Kai's verdict | S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | S-tier for kids learning. The tutoring UX is legit — not a generic chatbot dressed up. |
| Link | Open → | Open → | Open → | Open → |