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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Manus S | Elicit S | Suno S | Perplexity S | |
|---|---|---|---|---|
| Tagline | Autonomous AI agent that actually finishes tasks. | AI research assistant for academic literature. | Prompt to full song with vocals, instruments, the works. | AI search done right. Cited answers, not chat theater. |
| Category | Agents | Research | Audio | Research |
| Pricing | Free tier + $39-$199/mo | Free + $12-$42/mo | Free + $10/mo + $30/mo | Free + $20/mo Pro |
| Best for | People who want to hand off tasks entirely — trip planning, research, spreadsheet building. | Grad students, researchers, anyone doing literature reviews. | Jingles, intros, demos, sketches, personal use. | Replacing Google for any question where you want a cited answer in seconds. |
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| Kai's verdict | S-tier in the agent category. The first one I'd give to a non-technical friend. | S-tier for academic research. Nothing else comes close for systematic reviews. | S-tier in its category. The first AI music tool I'd actually listen to. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. |
| Link | Open → | Open → | Open → | Open → |