Agents work, wait, then work again. Blaxel puts their full working environment on standby between actions, then resumes it in 25ms. Files, memory, and processes stay intact. Active-compute cost drops to $0 while on standby.
Up to $200 in credits · No credit card required
Teams building with Blaxel
Blaxel vs. Cloudflare Sandbox
Cloudflare Sandbox turns Workers into a control plane for isolated containers. Blaxel keeps the full working state ready without charging for active compute during the wait.
Best fit
Blaxel
Agents that do real work
Agents that execute code, pause for input, and return to the same live working environment.
Cloudflare Sandbox
Sandbox execution inside the Workers stack
Code execution that belongs in the Workers stack and uses Durable Objects, R2, or other Cloudflare bindings.
While the agent waits
Blaxel
Keep the state without active compute
The sandbox enters standby automatically. Active-compute cost drops to $0 while the full working state stays ready. Snapshot storage still applies.
Cloudflare Sandbox
Keep the container active, or restore files
Use keepAlive to prevent sleep. Otherwise, restart after idle and reload the files the workflow persisted to R2 or a backup.
When work resumes
Blaxel
Continue in the same environment
The same filesystem, memory, and running processes resume in 25ms. Add a Volume or Agent Drive only when data must outlive one sandbox.
Cloudflare Sandbox
Restore the files you persisted
Mount R2 or another S3-compatible bucket, or restore a backup into the new container. Memory and running processes start over.
Access and credentials
Blaxel
Set controls on the sandbox
Control sandbox access with workspace permissions and short-lived client sessions. Domain filtering and proxy secret injection are available in public preview.
Cloudflare Sandbox
Use Workers as the network boundary
Route traffic through outbound Workers to inject credentials, restrict domains, or connect to Cloudflare services.
Where it runs
Blaxel
Independent agent runtime
Run the agent on Blaxel and call it from Workers or any application through an SDK or REST API.
Cloudflare Sandbox
A Worker coordinates each container
Run the sandbox from a Worker, with a Durable Object coordinating each container instance.
Run the pause test. Keep the Cloudflare edge.
Up to $200 in credits · No credit card required
Agents work, wait, then work again
Blaxel snapshots the full sandbox into standby. You pay for snapshot storage, not active compute, while it waits. The same files, memory, and processes resume in 25ms.
$0 active compute on standby
When the agent waits for a person, webhook, or external system, active-compute billing stops. Snapshot storage keeps the working state ready for the next action.
25ms resume with full state
Resume the same filesystem, memory, and processes in 25ms. The next action starts with dependencies loaded and the working environment intact.
Credentials and network access
Use workspace permissions and short-lived sessions to control who can operate a sandbox. Add domain filters or proxy secret injection where public preview access is enabled.
Live runtime visibility
Stream output, watch process and filesystem activity, and open a controlled preview before the agent finishes or enters standby.
Keep Cloudflare and the agent framework
Keep the Worker, agent logic, and model provider you already use. Host the agent, sandbox, MCP servers, batch jobs, and model access on Blaxel while Cloudflare stays at the edge.
First-class sandbox provider
Keep OpenAI agent logic while Blaxel provides persistent code execution, file transfer, streaming, and application previews.
Agent framework compatibility
Run Claude Agent SDK or Claude Code with an isolated computer that preserves the working environment between interactions.
Run the pause test with OpenAI or Claude.
Up to $200 in credits · No credit card required
Blaxel vs. Cloudflare Sandbox
Blaxel is the better fit for agents that work in bursts and must resume the same filesystem, memory, and running processes. Cloudflare Sandbox is the better fit when Workers is already the control plane and the workload should use Durable Objects, R2, Workers AI, or other Cloudflare bindings.
By default, Cloudflare stops the container after 10 minutes of inactivity. The next request starts a fresh container, so local files, processes, and memory are lost unless selected data is stored in an R2 or S3-compatible mount or restored from a backup. Blaxel preserves the full working state and resumes it in 25ms.
Blaxel automatically moves an inactive sandbox to standby, stops active-compute billing, and preserves its live working state. Cloudflare keepAlive sends a heartbeat every 30 seconds to prevent the container from sleeping indefinitely; it must be disabled or the sandbox must be destroyed when no longer needed.
No. Blaxel stops active-compute billing while the sandbox is in standby. Snapshot storage that preserves memory and filesystem state still incurs storage charges, and attached volumes are billed separately.
Yes. Keep Workers, Pages, Durable Objects, and edge routing on Cloudflare. Call an agent or sandbox on Blaxel through an SDK or REST API, then return the result to the Cloudflare application.
Cloudflare can route sandbox traffic through outbound Workers, inject credentials into selected requests, and restrict destinations. Blaxel supports domain policies, proxy-based secret injection, and dedicated egress where configured. Choose based on whether the Workers stack or the agent runtime should own those controls.
Yes. Cloudflare provides an open-source, self-managed deployment template for Claude Managed Agents with sandbox backends, egress controls, browser and email tools, custom tools, and a dashboard. It fits teams that want those agent actions managed through a Workers-based control plane.
Keep the Cloudflare edge
Connect a Worker, OpenAI agent, or Claude agent to Blaxel. Let it enter standby at $0 active-compute cost, then reconnect. In 25ms, verify that the same files, memory, and processes continue. Snapshot storage charges apply.
