AWS offers a set of primitives, not frameworks. These low-level primitives can be combined to build anything you want. Vercel's Build Output API[1] is a level of abstraction higher.
Consider Image Optimization. In this post, there's a `/_vercel/image` URL made available to send an image and return it compressed with a format like `.webp`, if possible based on the browser.
With AWS, this would be a combination of S3 (store images), Lambda (compute the image transformations), Cloudfront (CDN), and Route53 (DNS). With the Build Output API, the entire infrastructure is defined by a JSON object (similar to Terraform). I do think the AWS CDK and Copilot[2] are making infra-as-code easier, but infra-as-filesystem[3] is an interesting twist.
[1]: https://vercel.com/blog/build-output-api