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 (4 selected)
coding
image
productivity
writing
marketing
Devin A | Descript S | ChatGPT Operator B | Perplexity S | |
|---|---|---|---|---|
| Tagline | Cognition Labs' autonomous coding engineer. | Edit video + podcasts by editing the transcript. | OpenAI's browser agent. Clicks and types on websites for you. | AI search done right. Cited answers, not chat theater. |
| Category | agents | video | agents | research |
| Pricing | $500/mo | Free + $16-$50/mo | Included with ChatGPT Pro $200/mo | Free + $20/mo Pro |
| Best for | Engineering teams offloading tickets. Ops/platform work. | Podcasters, course creators, anyone editing talking-head content. | Power users willing to pay $200/mo for a browser bot. | Replacing Google for any question where you want a cited answer in seconds. |
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| Kai's verdict | A-tier for the right use case. Not for solo devs. If you manage engineers, try one license. | S-tier for content creators. Cuts editing time in half. Non-obvious but life-changing. | B-tier. Still early. Manus is more flexible for less money. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. |
| Link | Open → | Open → | Open → | Open → |