What are the fundamental architectural differences between Cloudflare Workers and Vercel Edge Functions?

Cloudflare Workers operate as a standalone serverless platform on Cloudflare's global network, executing JavaScript/WebAssembly in V8 Isolates with extremely low overhead. They offer full control over the request lifecycle at the edge. Vercel Edge Functions, while also running on Cloudflare's network (or other similar edge runtimes), are primarily designed as an extension for applications built on the Vercel platform (e.g., Next.js). They provide a familiar Node.js-like API within a lightweight runtime specifically for handling web requests and augmenting UI logic, tightly integrated with Vercel's build and deployment processes.