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
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Productivity
Writing
Marketing
Lex A | Perplexity S | Taskade B | |
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| Tagline | Google Docs with an AI collaborator baked in. | AI search done right. Cited answers, not chat theater. | AI project management with agents for each team. |
| Category | Writing | Research | Productivity |
| Pricing | Free + $12/mo | Free + $20/mo Pro | Free + $8-$20/user/mo |
| Best for | Essays, long-form drafts, thinking on the page. | Replacing Google for any question where you want a cited answer in seconds. | Small teams wanting AI baked into project management. |
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| Kai's verdict | A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | B-tier. Solid product but crowded market. Try it if Notion AI feels too generic. |
| Link | Open → | Open → | Open → |