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
ChatGPT Operator B | Aider A | Cursor S | |
|---|---|---|---|
| Tagline | OpenAI's browser agent. Clicks and types on websites for you. | Terminal-based AI pair programmer. Git-aware, model-flexible. | VS Code fork that made AI coding actually work. |
| Category | agents | coding | coding |
| Pricing | Included with ChatGPT Pro $200/mo | Free (open source) + whatever API you use | Free + $20/mo Pro + $40/mo Business |
| Best for | Power users willing to pay $200/mo for a browser bot. | Developers who want open-source tooling with full control. | 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. | A-tier. The right answer if you want open-source + terminal-native + model-agnostic. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. |
| Link | Open → | Open → | Open → |