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
Cursor S | Sora A | Lovable A | Aider A | |
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| Tagline | VS Code fork that made AI coding actually work. | OpenAI's video model. Long clips, cinematic quality. | Build a full app from a prompt. Stripe-ready. | Terminal-based AI pair programmer. Git-aware, model-flexible. |
| Category | Coding | Video | Design | Coding |
| Pricing | Free + $20/mo Pro + $40/mo Business | Included with ChatGPT Plus/Pro | Free + $25-$100/mo | Free (open source) + whatever API you use |
| Best for | Developers. Non-developers who want to ship working code. | ChatGPT subscribers experimenting with cinematic shots. | Non-devs + solopreneurs shipping MVPs. | Developers who want open-source tooling with full control. |
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| Kai's verdict | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | A-tier. Amazing when it works, frustrating when it doesn't. Runway still more reliable for pros. | A-tier. The strongest 'no-code' AI builder right now. Great for founder MVPs. | A-tier. The right answer if you want open-source + terminal-native + model-agnostic. |
| Link | Open → | Open → | Open → | Open → |