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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Gemini A | HeyGen S | Elicit S | ChatGPT Operator B | |
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| Tagline | Google's answer. Best integrated with Workspace + free for a lot. | AI avatar videos. Record once, speak any language. | AI research assistant for academic literature. | OpenAI's browser agent. Clicks and types on websites for you. |
| Category | Chatbots | Video | Research | Agents |
| Pricing | Free + $20/mo Advanced (bundled with 2TB Drive) | Free + $24-$65/mo | Free + $12-$42/mo | Included with ChatGPT Pro $200/mo |
| Best for | Anyone already on Google, research tasks, summarizing long documents. | Course creators, multilingual marketers, anyone scaling video content. | Grad students, researchers, anyone doing literature reviews. | Power users willing to pay $200/mo for a browser bot. |
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| Kai's verdict | A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google. | S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code. | S-tier for academic research. Nothing else comes close for systematic reviews. | B-tier. Still early. Manus is more flexible for less money. |
| Link | Open → | Open → | Open → | Open → |