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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MagicSchool S | Khanmigo S | ChatGPT S | Grammarly A | |
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| Tagline | AI platform built for teachers. Lesson plans + IEPs + admin. | Khan Academy's AI tutor. Socratic method, built for learning. | The default. Strongest ecosystem + best multimodal breadth. | Grammar check + tone + AI drafting, everywhere you type. |
| Category | education | education | chat | writing |
| Pricing | Free + $100/yr Plus + school plans | $4/mo (free for teachers) | Free + $20/mo Plus + $200/mo Pro | Free + $12-$15/mo Premium + team plans |
| Best for | Teachers prepping materials. School districts. | Students K-12. Parents helping with homework. Teachers prepping lessons. | General use, voice chat, image generation, first-time AI users. | Non-native English writers, business email, anyone who types a lot. |
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| Kai's verdict | S-tier for teachers. If you teach K-12, start here this week. | S-tier for kids learning. The tutoring UX is legit — not a generic chatbot dressed up. | S-tier all-rounder. If you want one tool that does everything okay-to-great, this is it. | A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone. |
| Link | Open → | Open → | Open → | Open → |