openaienmodel: gpt-5-mini-2025-08-07
Containers - Containers and Sandboxes are now generally available
Key Points
- GA release with higher concurrency limits
- Active‑CPU billing for cost efficiency
- Sandbox SDK with persistent interpreters
Summary
Cloudflare Containers and Sandboxes are now GA on the Workers platform. They let engineers run more resource‑intensive workloads, full Linux environments, different languages, and CLI tools alongside Workers. The GA release improves performance, stability, and adds features that simplify integration, debugging, and secure execution of untrusted code.
Key Points
- GA increases limits to allow thousands of containers to run concurrently—useful for scaling many short- or long‑lived agents.
- Active‑CPU pricing charges only for CPU cycles used, reducing cost for idle or bursty workloads.
- Hostname bindings let Containers connect to Workers and other services directly for easy extension and service composition.
- Docker Hub and registry support let you bring existing images and CI workflows.
- SSH access to live containers enables direct debugging and incident response.
- Sandbox SDK provides an isolated, TypeScript-friendly API for executing commands, managing files, and exposing services for secure agent execution.
- New developer features: live preview URLs for long‑lived services, persistent Python/JavaScript/TypeScript interpreters with structured outputs, interactive PTY browser terminals, backup/restore APIs for workspace snapshots, and real‑time filesystem watching.
For implementation details and examples, consult the Containers and Sandbox SDK documentation to map these features to your deployment and CI/CD workflows.