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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Dev Platform
Agents
Video
Coding
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Productivity
Writing
Marketing
Khanmigo S | Suno S | Cursor S | NotebookLM S | |
|---|---|---|---|---|
| Tagline | Khan Academy's AI tutor. Socratic method, built for learning. | Prompt to full song with vocals, instruments, the works. | VS Code fork that made AI coding actually work. | Google's research notebook. Turns your docs into a podcast. |
| Category | Education | Audio | Coding | Research |
| Pricing | $4/mo (free for teachers) | Free + $10/mo + $30/mo | Free + $20/mo Pro + $40/mo Business | Free |
| Best for | Students K-12. Parents helping with homework. Teachers prepping lessons. | Jingles, intros, demos, sketches, personal use. | Developers. Non-developers who want to ship working code. | Students, researchers, anyone with a stack of PDFs or a topic to learn. |
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| Kai's verdict | S-tier for kids learning. The tutoring UX is legit — not a generic chatbot dressed up. | S-tier in its category. The first AI music tool I'd actually listen to. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | S-tier for study. The Audio Overview is a killer feature. Try it with three of your favorite PDFs. |
| Link | Open → | Open → | Open → | Open → |