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
Image
Productivity
Writing
Marketing
Perplexity S | Khanmigo S | Suno S | Ideogram S | |
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| Tagline | AI search done right. Cited answers, not chat theater. | Khan Academy's AI tutor. Socratic method, built for learning. | Prompt to full song with vocals, instruments, the works. | The one that actually gets text in images right. |
| Category | Research | Education | Audio | Image |
| Pricing | Free + $20/mo Pro | $4/mo (free for teachers) | Free + $10/mo + $30/mo | Free + $8/mo + $20/mo + $60/mo |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Students K-12. Parents helping with homework. Teachers prepping lessons. | Jingles, intros, demos, sketches, personal use. | Anything with text — posters, ads, album covers, slide decks. |
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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. | 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 text-in-image. Use this for posters, Midjourney for art. |
| Link | Open → | Open → | Open → | Open → |