Sandbox Providers

E2B alternatives, priced against E2B

Alibaba Cloud Agent Sandbox is the cheapest E2B alternative: a 2 vCPU / 4 GiB sandbox (Economy class) costs $0.055 an hour there against $0.166 on E2B, from their published rates of $0.0137 (source: Alibaba Cloud Agent Sandbox billing overview) and $0.0504 (source: E2B Pricing) per vCPU-hour. Northflank, Prime Intellect, Freestyle, Beam, Together Code and Fly.io Sprites also undercut E2B; Daytona and Hopx match it to the cent. Pick for the reason you are leaving: price, GPUs, longer sessions or idle billing.

Rates checked Compare E2B side by side

Price of the same sandbox, every provider against E2B

Provider 2 vCPU + 4 GiB$/hr vs E2B Relative cost vCPU$/vCPU-hr Memory$/GiB-hr Billed on Isolation Max session Pause / resume GPU Self-host
Alibaba Cloud Agent Sandbox $0.055 0.33x $0.0137 (source: Alibaba Cloud Agent Sandbox billing overview) $0.0069 (source: Alibaba Cloud Agent Sandbox billing overview) wall clock VM — Yes — —
Northflank Sandboxes $0.067 0.40x $0.0167 (source: Northflank Pricing) $0.0083 (source: Northflank Pricing) wall clock Cloud Hypervisor microVM No time limit (runs until deleted) Yes Yes Yes
Prime Intellect Sandboxes $0.090 0.54x $0.02 (source: Prime Intellect Sandboxes docs) $0.0125 (source: Prime Intellect Sandboxes docs) wall clock microVM 60 min default, no lifetime limit when set Yes No —
Freestyle $0.132 0.80x $0.0403 (source: Freestyle Pricing) $0.0129 (source: Freestyle Pricing) wall clock VM No limit stated ("can run forever") Yes — —
Beam $0.140 0.85x $0.05 (source: Beam Pricing) $0.01 (source: Beam Pricing) wall clock — — — Yes Yes
Together Code Sandbox $0.149 0.90x $0.0446 (source: Together AI Pricing) $0.0149 (source: Together AI Pricing) — — — Yes — —
Fly.io Sprites $0.164 0.99x $0.0385 (source: Fly.io Sprites) $0.0219 (source: Fly.io Sprites) — VM — Yes — —
Daytona $0.166 1.00x $0.0504 (source: Daytona Pricing) $0.0162 (source: Daytona Pricing) wall clock container — Yes Yes —
E2B $0.166 base $0.0504 (source: E2B Pricing) $0.0162 (source: E2B Pricing) wall clock Firecracker microVM 1 h (Hobby), 24 h (Pro) Yes No Yes
Hopx $0.166 1.00x $0.0504 (source: Hopx Pricing) $0.0162 (source: Hopx Pricing) wall clock Firecracker microVM No execution time limit ("hours, days, or weeks") — — —
Cloudflare Sandbox SDK / Containers $0.180 1.09x $0.072 (source: Cloudflare Containers pricing) $0.009 (source: Cloudflare Containers pricing) active CPU microVM — — — —
Tensorlake Sandboxes $0.200 1.21x $0.07 (source: Tensorlake Pricing) $0.015 (source: Tensorlake Pricing) active CPU Firecracker microVM 2 h (Free), 24 h (Usage Credits), unlimited (Pro) Yes Yes —
Upstash Box $0.200 1.21x $0.10 (source: Upstash Box pricing) $0 (source: Upstash Box pricing) active CPU container Idle timeout 1 h (Free), 6 h (Pay as you go), none (Keep Alive) Yes — —
Google Agent Platform Code Execution $0.206 1.24x $0.085 (source: Google Cloud Agent Platform pricing) $0.009 (source: Google Cloud Agent Platform pricing) — — State kept up to 14 days (configurable TTL) — — —
Amazon Bedrock AgentCore Code Interpreter $0.217 1.31x $0.0895 (source: Amazon Bedrock AgentCore Pricing) $0.0095 (source: Amazon Bedrock AgentCore Pricing) active CPU microVM 15 min default, extendable to 8 h — — —
Modal Sandboxes $0.238 1.44x $0.071 (source: Modal Pricing) $0.024 (source: Modal Pricing) wall clock gVisor 5 min default, up to 24 h — Yes —
Runloop $0.317 1.91x $0.108 (source: Runloop Pricing) $0.0252 (source: Runloop Pricing) wall clock VM — Yes — —
Vercel Sandbox $0.341 2.06x $0.128 (source: Vercel Sandbox pricing and quotas) $0.0212 (source: Vercel Sandbox pricing and quotas) active CPU Firecracker microVM 45 min (Hobby), 24 h (Pro/Enterprise) per session; persistent sandboxes resume indefinitely Yes — —

Box price = 2 × the vCPU rate + 4 × the memory rate, for one hour of wall-clock time. Amazon Bedrock AgentCore Code Interpreter, Cloudflare Sandbox SDK / Containers, Tensorlake, Upstash Box and Vercel bill CPU only while it is busy, so an agent that idles costs them less than shown. A dash means the vendor does not publish the figure.

Pick by the reason you are leaving E2B

Lower bill for the same box
Alibaba Cloud Agent Sandbox ($0.055/hr), Northflank Sandboxes ($0.067/hr), Prime Intellect Sandboxes ($0.090/hr), Freestyle ($0.132/hr), Beam ($0.140/hr), Together Code Sandbox ($0.149/hr) and Fly.io Sprites ($0.164/hr). Alibaba Cloud Agent Sandbox costs 67% less than E2B per box-hour and runs each sandbox in a VM.
GPUs
E2B lists CPU-only sandboxes (source: E2B Pricing). GPU sandboxes: Beam, Daytona, Modal Sandboxes, Northflank Sandboxes and Tensorlake Sandboxes. Daytona goes up to 8 GPUs per sandbox, H100 to B300 (source: Daytona Sandboxes docs); Tensorlake lists the H100 at $3.95 an hour (source: Tensorlake Pricing).
Sessions longer than 24 hours
E2B stops at 1 h (Hobby), 24 h (Pro) (source: E2B Pricing). Northflank: No time limit (runs until deleted) (source: Northflank Sandboxes). Freestyle: No limit stated ("can run forever") (source: Freestyle Pricing). Tensorlake: 2 h (Free), 24 h (Usage Credits), unlimited (Pro) (source: Tensorlake Pricing).
Agents that sit idle
Amazon Bedrock AgentCore Code Interpreter, Cloudflare Sandbox SDK / Containers, Tensorlake Sandboxes, Upstash Box and Vercel Sandbox charge for CPU only while it works. Blaxel drops a sandbox to standby after about 5 seconds idle, charges $0 compute there and resumes in under 25 ms (source: Blaxel Sandboxes overview) with memory intact.
A published start time
E2B publishes no cold-start figure. Daytona: 90 ms (source: Daytona homepage), at E2B’s exact rates. Hopx: 100 ms (source: Hopx Pricing), also at E2B’s rates. Freestyle: 400 ms p99 (source: Freestyle Docs).
Fork a running sandbox
Blaxel, CodeSandbox SDK, Daytona, Freestyle, Morph Cloud, Prime Intellect Sandboxes and Together Code Sandbox clone a running or snapshotted sandbox into new ones, which suits agents that explore several paths from one state.
Stay inside AWS, Azure or Google Cloud
AgentCore Code Interpreter ($0.0895 (source: Amazon Bedrock AgentCore Pricing) per vCPU-hour, sessions up to 8 h), Azure Dynamic Sessions (Hyper-V, 38 regions) and Agent Sandbox on GKE (gVisor, no charge beyond GKE compute).

Where E2B still leads

E2B ticks all four: an Apache-2.0 (source: E2B runtime (GitHub)) runtime on GitHub you can self-host, a managed cloud, deployment inside your own cloud account, and a SOC 2 Type II (source: E2B homepage) report. Pause keeps memory state, which only Blaxel, Daytona, Freestyle, microsandbox, Prime Intellect and Together Code also confirm. Pro raises sessions to 24 hours and concurrency to 100 sandboxes for $150/month (source: E2B Pricing) plus usage.

If those four matter more than the hourly rate, stay. If the rate, GPUs or session length decide it, the table above is sorted for you.

Alternatives without a comparable hourly rate

13 providers

These bill per request, per session, per bundled unit or not at all, or publish no rate. Open each for what it does publish.