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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Coding
Image
Productivity
Writing
Marketing
Perplexity S | Cursor S | ChatGPT Operator B | Copy.ai A | |
|---|---|---|---|---|
| Tagline | AI search done right. Cited answers, not chat theater. | VS Code fork that made AI coding actually work. | OpenAI's browser agent. Clicks and types on websites for you. | AI GTM platform. Workflows for sales + marketing ops. |
| Category | Research | Coding | Agents | Marketing |
| Pricing | Free + $20/mo Pro | Free + $20/mo Pro + $40/mo Business | Included with ChatGPT Pro $200/mo | Free + $49-$249/mo |
| Best for | Replacing Google for any question where you want a cited answer in seconds. | Developers. Non-developers who want to ship working code. | Power users willing to pay $200/mo for a browser bot. | RevOps + marketing ops automating repetitive tasks. |
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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 coding. If you write code of any kind, this pays back the $20 in a day. | B-tier. Still early. Manus is more flexible for less money. | A-tier for ops automation. B-tier for simple copy (use Claude). |
| Link | Open → | Open → | Open → | Open → |