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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Perplexity S | Writesonic B | Otter.ai B | Hume AI A | |
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| Tagline | AI search done right. Cited answers, not chat theater. | SEO-first AI writer. Optimized for ranking content. | Meeting transcription veteran. Cross-platform, team-friendly. | Voice AI that reads + expresses emotion. |
| Category | Research | Marketing | Meetings | Voice |
| Pricing | Free + $20/mo Pro | Free + $15-$99/mo | Free + $17-$30/user/mo | Free tier + pay-as-you-go |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Content marketers churning out SEO articles. | Teams on Windows/PC. Anyone needing cross-platform coverage. | Therapy apps, customer service, any voice agent where emotion matters. |
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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. | B-tier. Use Claude + manual SEO thinking. Writesonic is fast but generic. | B-tier. Granola is better UX but Otter works everywhere. Pick based on your platform. | A-tier in its niche. The only one that actually gets emotion right. |
| Link | Open → | Open → | Open → | Open → |