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
Aider A | Cursor S | Lovable A | Fathom S | |
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| Tagline | Terminal-based AI pair programmer. Git-aware, model-flexible. | VS Code fork that made AI coding actually work. | Build a full app from a prompt. Stripe-ready. | Meeting notes, free forever for individuals. |
| Category | coding | coding | design | meeting |
| Pricing | Free (open source) + whatever API you use | Free + $20/mo Pro + $40/mo Business | Free + $25-$100/mo | Free for individuals + $15-$29/user/mo teams |
| Best for | Developers who want open-source tooling with full control. | Developers. Non-developers who want to ship working code. | Non-devs + solopreneurs shipping MVPs. | Solo operators, freelancers, small teams on a budget. |
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| Kai's verdict | 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. | A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs. | S-tier for solo + free. The best free option, hands down. |
| Link | Open → | Open → | Open → | Open → |