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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Perplexity S | HeyGen S | Rows A | Replicate S | |
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| Tagline | AI search done right. Cited answers, not chat theater. | AI avatar videos. Record once, speak any language. | Spreadsheets with AI + live integrations baked in. | Run any open-source AI model with an API call. |
| Category | research | video | data | dev platform |
| Pricing | Free + $20/mo Pro | Free + $24-$65/mo | Free + $19-$89/user/mo | Pay per second of compute |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Course creators, multilingual marketers, anyone scaling video content. | Ops teams, marketers, anyone building dashboards from multiple sources. | Developers using open-source models (Flux, SDXL, Whisper, etc). |
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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 multilingual video. If you sell courses or speak at events, this is a cheat code. | A-tier. The most interesting spreadsheet in years. Great for ops dashboards. | S-tier for open-source model APIs. The default in this space. |
| Link | Open → | Open → | Open → | Open → |