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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Replit Agent A | v0 S | Cursor S | Ollama S | |
|---|---|---|---|---|
| Tagline | Replit's AI that builds + deploys full apps on their platform. | Vercel's AI-powered UI generator. Prompt to shadcn component. | VS Code fork that made AI coding actually work. | Run LLMs locally. One-line install, GUI optional. |
| Category | Coding | Design | Coding | Dev Platform |
| Pricing | $10-$25/mo Core/Teams | Free + $20/mo | Free + $20/mo Pro + $40/mo Business | Free + open source |
| Best for | Teachers, students, prototypers, hackathon builders. | Frontend devs, PMs prototyping UIs, anyone on Next.js. | Developers. Non-developers who want to ship working code. | Devs wanting offline/local LLMs for privacy or experimentation. |
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| Kai's verdict | A-tier. Best for teaching a kid to code in 2026. | S-tier. If you're on Vercel/shadcn, this is cheating. | S-tier for coding. If you write code of any kind, this pays back the $20 in a day. | S-tier for local inference. If you care about privacy or want to tinker, install this today. |
| Link | Open → | Open → | Open → | Open → |