Deno Sandbox vs VMs for Deno

Deno Sandbox is a new product in the agent infrastructure market, designed to provide developers with Linux microVMs and a direct path to Deno Deploy, making it ideal for securely running generated TypeScript code that needs to be inspected and either discarded or deployed. It serves as a bounded, secure execution environment for untrusted Deno code with features such as SSH, HTTP exposure, and secret protection, while also offering a seamless integration with Deno Deploy, allowing code to be tested in a sandbox and then directly deployed. However, for more complex and long-running Deno agent tasks that require a persistent workspace, Freestyle VMs are preferred, as they offer more robust features like real Linux environments, durable terminals, and the ability to fork live workspaces. While Deno Sandbox is well-suited for fast, bounded, and secure execution of untrusted code, Freestyle VMs are better equipped for scenarios where a continuous, interactive development environment is necessary, especially for AI agents and app builders requiring a long-lasting runtime context.

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