Cloudflare recently released Dynamic Worker into open beta, available to all paid Workers users. The API allows a Cloudflare Worker to instantiate a new Worker at runtime with dynamically specified code, each running in its own isolated sandbox. The feature is aimed squarely at the growing need to safely execute AI-generated code, a challenge that most teams currently address with containers.
The core pitch is performance. Dynamic Workers use V8 isolates, the same JavaScript engine underlying Google Chrome and the entire Cloudflare Workers platform for the past eight years, rather than Linux containers. According to Cloudflare, isolates start in a few milliseconds and use a few megabytes of memory, making them roughly 100x faster to boot and 10-100x more memory…