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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ChatGPT Operator B | Manus S | Gemini A | Cursor S | |
|---|---|---|---|---|
| Tagline | OpenAI's browser agent. Clicks and types on websites for you. | Autonomous AI agent that actually finishes tasks. | Google's answer. Best integrated with Workspace + free for a lot. | VS Code fork that made AI coding actually work. |
| Category | Agents | Agents | Chatbots | Coding |
| Pricing | Included with ChatGPT Pro $200/mo | Free tier + $39-$199/mo | Free + $20/mo Advanced (bundled with 2TB Drive) | Free + $20/mo Pro + $40/mo Business |
| Best for | Power users willing to pay $200/mo for a browser bot. | People who want to hand off tasks entirely — trip planning, research, spreadsheet building. | Anyone already on Google, research tasks, summarizing long documents. | Developers. Non-developers who want to ship working code. |
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| Kai's verdict | B-tier. Still early. Manus is more flexible for less money. | S-tier in the agent category. The first one I'd give to a non-technical friend. | A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. |
| Link | Open → | Open → | Open → | Open → |