Cloudflare engineer rebuilt Next.js with AI in one week for $1,100 in tokens

One Cloudflare engineer and an AI model rebuilt the popular Next.js framework from scratch in a week. The result, vinext, is a Vite-based drop-in replacement that deploys to Cloudflare Workers, builds production apps up to 4x faster, and produces client bundles up to 57% smaller. Customers are already running it in production. The project highlights how AI coding tools are compressing development timelines for infrastructure-level software. The $1,100 token cost underscores the economics of AI-assisted development for complex engineering projects.

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