Docker Sandboxes

Docker's sbx CLI runs AI coding agents in isolated microVM sandboxes on your own machine or on Docker-managed cloud compute. For developers who want to let coding agents run unattended without exposing the host.

vCPU
not published
Memory
not published
2 vCPU + 4 GiB
no comparable rate
Isolation
microVM
Pause / resume
Not published
Max session
not published

Visit Docker Sandboxes Compare side by side Request a quote Checked

Cheapest providers with comparable rates

All providers against E2B
Provider2 vCPU + 4 GiB$/hrvs E2BRelative costIsolation
Alibaba Cloud Agent Sandbox $0.055 (source: Alibaba Cloud Agent Sandbox billing overview) 0.33x VM
Northflank Sandboxes $0.067 (source: Northflank Pricing) 0.40x Cloud Hypervisor microVM
Prime Intellect Sandboxes $0.090 (source: Prime Intellect Sandboxes docs) 0.54x microVM
Freestyle $0.132 (source: Freestyle Pricing) 0.80x VM
Beam $0.140 (source: Beam Pricing) 0.85x —

Every field

Source on each value
Isolation Isolation technology the vendor states for each sandbox.
microVM (source: Docker Sandboxes architecture)
Other isolation options Alternative runtimes the vendor offers besides the default (e.g. VM runtime, gVisor for GPU).
Not published
Deployment Managed cloud service, self-hosted software, or both.
both (source: Docker Sandboxes docs)
Billing basis What the meter counts: wall-clock allocated resources, active CPU only, requests/plan quota, session-hours, or free software.
Not published
vCPU price $/vCPU-hr Published on-demand CPU rate normalised to USD per vCPU-hour (per-second rates multiplied by 3,600; per-core rates divided by vCPUs per core where the vendor defines it). Lowest public tier, default region.
Not published
Memory price $/GiB-hr Published memory rate normalised to USD per GiB-hour (GB treated as GiB where the vendor does not distinguish). 0 means the vendor states memory is free.
Not published
Sandbox from $/sandbox-hr Smallest published per-sandbox hourly price, where the vendor publishes one.
Not published
Paid plan from $/mo Cheapest paid platform plan fee (before usage).
Not published
Free tier A free plan, free monthly allowance or sign-up credit exists.
Yes (source: Docker Sandboxes docs)
Free tier detail What the free tier or credit includes, as published.
sbx CLI and local sandbox compute free, including commercial use; cloud compute pay-as-you-go. (source: Docker Sandboxes docs)
Cold start ms Vendor-published create/boot time in milliseconds. Only filled when the vendor publishes a number; see startup_claim for context (percentile, conditions).
Not published
Resume time ms Vendor-published resume-from-pause/standby/snapshot time in milliseconds.
Not published
Startup claim The vendor's startup/resume wording with conditions, quoted or closely paraphrased.
Not published
Max session length Longest single sandbox session by plan, as published.
Not published
Persistence / snapshots Filesystem state can be kept between runs (snapshots, persistent disks, volumes).
Yes (source: Docker Sandboxes architecture)
Pause / resume A sandbox can be paused, suspended, hibernated or put in standby and resumed later.
Not published
Memory state kept Pause/hibernate preserves running memory state, not only the filesystem.
Not published
Fork / branch A running or snapshotted sandbox can be cloned into new sandboxes.
Not published
GPU GPU sandboxes are offered.
Not published
Self-host Can run on your own hardware or cluster (open source or licensed).
Yes (source: Docker Sandboxes docs)
BYOC / VPC Vendor-managed deployment inside your own cloud account.
Not published
Open source Core sandbox runtime is published under an open-source licence.
Not published
Licence Open-source licence of the runtime, if any.
Not published
SDKs / languages Official SDK languages (or supported execution languages where noted).
Not published
Regions Published regions or region count.
Not published
Max vCPU per sandbox vCPU Largest published vCPU count per sandbox on any self-serve or enterprise plan.
Not published
Max memory per sandbox GiB Largest published memory per sandbox.
Not published
Concurrency Published concurrent sandbox limits by plan.
Not published
SOC 2 SOC 2 status as stated by the vendor.
Not published
HIPAA Vendor offers HIPAA-compliant usage/BAA (on any plan).
Not published
Pricing from
$0.00
Pricing as published
Local free; cloud compute billed separately (rate not on the docs page). Checked 2026-11-09.

Sources

  1. Docker Sandboxes docs accessed 2026-11-09
  2. Docker Sandboxes architecture accessed 2026-11-09

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