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
Replit Agent A | Perplexity S | Fathom S | |
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| Tagline | Replit's AI that builds + deploys full apps on their platform. | AI search done right. Cited answers, not chat theater. | Meeting notes, free forever for individuals. |
| Category | coding | research | meeting |
| Pricing | $10-$25/mo Core/Teams | Free + $20/mo Pro | Free for individuals + $15-$29/user/mo teams |
| Best for | Teachers, students, prototypers, hackathon builders. | Replacing Google for any question where you want a cited answer in seconds. | Solo operators, freelancers, small teams on a budget. |
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| Kai's verdict | A-tier. Best for teaching a kid to code in 2026. | S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week. | S-tier for solo + free. The best free option, hands down. |
| Link | Open → | Open → | Open → |