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 (3 selected)
Coding
Image
Productivity
Writing
Marketing
Elicit S | Replit Agent A | HeyGen S | |
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| Tagline | AI research assistant for academic literature. | Replit's AI that builds + deploys full apps on their platform. | AI avatar videos. Record once, speak any language. |
| Category | Research | Coding | Video |
| Pricing | Free + $12-$42/mo | $10-$25/mo Core/Teams | Free + $24-$65/mo |
| Best for | Grad students, researchers, anyone doing literature reviews. | Teachers, students, prototypers, hackathon builders. | Course creators, multilingual marketers, anyone scaling video content. |
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| Kai's verdict | S-tier for academic research. Nothing else comes close for systematic reviews. | A-tier. Best for teaching a kid to code in 2026. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. |
| Link | Open → | Open → | Open → |