Dynamic Workers

What is Dynamic Workers?

Cloudflare sandboxes that run AI-generated code on demand.

Who is Dynamic Workers best for?

Dynamic Workers is best for developers on Cloudflare who need to run untrusted or AI-generated code in a sandbox at runtime.

• Agents that write code

  An agent can write and run code against an API instead of making many tool calls, which Cloudflare says can cut inference tokens and cost by up to 80%.

• Running AI-generated apps

  Code from an AI app builder runs in an isolated Worker, and you decide which bindings it gets and whether it can reach the internet.

• Platforms that host users' code

  Code your users upload is loaded at runtime, with custom CPU and subrequest limits, instead of being deployed as a separate Worker each time.

• Previews and playgrounds

  Prototypes and previews start in milliseconds, a lighter option than spinning up a container for each one.

How much does Dynamic Workers cost?

Dynamic Workers needs Cloudflare's Workers Paid plan, which costs at least $5 a month per account and includes 1,000 Dynamic Workers, 10 million requests and 30 million CPU milliseconds a month before usage charges.

Dynamic Workers does not run on the Workers Free plan. Requests and CPU time are charged at Workers Standard rates and share the allowance with your other Workers on the same bill. Cloudflare counts each unique pairing of Worker ID and code created in a day, so reusing a stable ID with .get() counts once, while .load() without an ID counts on every call. CPU time also covers starting the isolate and parsing the code, not only running it. Enterprise accounts are billed on contract terms. Full pricing on developers.cloudflare.com. We checked these prices on 27 Sep 2026.

How do readers rate Dynamic Workers?

No one has rated Dynamic Workers yet. Be the first.

What are the best Dynamic Workers alternatives?

One tool on Recaply does Dynamic Workers's job. It is open source, so you can run it on your own server.

E2BOpen Source

Choose it when you want each agent's code in its own Firecracker microVM, and the option to run the whole sandbox stack on your own Linux machine.

Questions about Dynamic Workers