OpenSandbox vs E2B
Self-hosted sandbox platform with lifecycle APIs, execution tools and SDKs. Starts on local Docker and scales to Kubernetes. OpenSandbox is free software you run yourself, so it has no hourly price; E2B lists $0.166 an hour for a 2 vCPU / 4 GiB sandbox.
OpenSandbox against E2B, line by line
E2B baseline sourcesPrices are list prices for one hour of a 2 vCPU / 4 GiB sandbox: 2 × the vCPU rate + 4 × the memory rate. Each value links to the page it came from; not published means the vendor states no figure. How we compare.
Pick OpenSandbox instead of E2B when
- you want a published start time: OpenSandbox states 64 ms (a vendor claim), and E2B publishes no figure.
- you want to run the sandbox layer yourself under a Apache-2.0 licence (E2B's runtime is Apache-2.0 and self-hostable too).
Stay on E2B when
- you need a SOC 2 report: E2B states Type II, and OpenSandbox states none in our data.
- you want managed cloud, your own cloud account and self-hosting from one vendor: E2B offers all three, with BYOC on its Enterprise plan, and OpenSandbox offers one of them.
All OpenSandbox facts
Source per value- Isolation Isolation technology the vendor states for each sandbox.
- Firecracker microVM 1
- Other isolation options Alternative runtimes the vendor offers besides the default (e.g. VM runtime, gVisor for GPU).
- Other runtime integrations depend on configuration 1
- Deployment Managed cloud service, self-hosted software, or both.
- self-hosted 1
- Billing basis What the meter counts: wall-clock allocated resources, active CPU only, requests/plan quota, session-hours, or free software.
- free (OSS) 1
- 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. 0 means the vendor states no separate CPU charge.
- 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.
- Not published
- Free tier detail What the free tier or credit includes, as published.
- Not published
- Cold start ms Vendor-published create/boot time in milliseconds (a vendor claim, not our benchmark). Only filled when the vendor publishes a number; see startup_claim for percentile and conditions.
- 64 1
- 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.
- Fast Sandbox Firecracker creation: 64 ms P50 serial, 125.4 ms P99 with 10 concurrent creations (project benchmark). 1
- 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 1
- Pause / resume A sandbox can be paused, suspended, hibernated or put in standby and resumed later.
- Yes 1
- Memory state kept Pause/hibernate preserves running memory state, not only the filesystem.
- Yes 1
- 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 1
- BYOC / VPC Vendor-managed deployment inside your own cloud account.
- Not published
- Open source Core sandbox runtime is published under an open-source licence.
- Yes 1
- Licence Open-source licence of the runtime, if any.
- Apache-2.0 1
- 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
- 2 vCPU + 4 GiB per hour $/hr Hourly list price of one 2 vCPU / 4 GiB sandbox: 2 x the vCPU rate + 4 x the memory rate, from the two published rates. Left empty for self-hosted software and for vendors without both rates. Vendors that bill CPU only while busy (Vercel, Cloudflare, Upstash, Tensorlake, AWS AgentCore) cost less for idle agents than this shows.
- Not published
- Price vs E2B x E2B The 2 vCPU + 4 GiB hourly price divided by E2B's own ($0.1656 at $0.000014/vCPU-s and $0.0000045/GiB-s). Under 1 is cheaper than E2B.
- Not published
- Status Preview, experimental, beta, sunset or self-hosting caveats the vendor documents.
- Not published
Sources
- github.com accessed 2026-11-11
OpenSandbox in the E2B comparisons
- Self-hosted E2B alternativesWhich E2B alternatives can I run on my own hardware or cluster? 9 listed.
- E2B alternatives with microVM or VM isolationWhich E2B alternatives give each sandbox its own kernel? 26 listed.
Compare with other E2B alternatives
All 41- Docker vs E2B no comparable hourly price, microVM
- microsandbox vs E2B no comparable hourly price, microVM
- Northflank vs E2B $0.067/hr, 0.4x E2B, Cloud Hypervisor microVM
- Agent vs E2B no comparable hourly price, pluggable (gVisor/Kata)
- AWS Lambda MicroVMs vs E2B no comparable hourly price, Firecracker microVM
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