E2B alternatives with microVM or VM isolation
E2B runs every sandbox in a Firecracker microVM. 26 alternatives state a microVM, VM or hypervisor boundary too, so untrusted code gets its own kernel. The rest use containers, gVisor or restricted runtimes.
Which E2B alternatives give each sandbox its own kernel?
| Provider | 2 vCPU + 4 GiB / hr | vs E2B | Isolation | Max session | GPU | Self-host |
|---|---|---|---|---|---|---|
| E2B (baseline) | $0.166 (source: E2B Pricing) | 1.00x | Firecracker microVM | 1 h (Hobby), 24 h (Pro) | No | Yes |
| Northflank vs E2B | $0.067 (source: Northflank Pricing) | 0.40x | Cloud Hypervisor microVM | No time limit (runs until deleted) | Yes | Yes |
| Alibaba Cloud vs E2B | $0.071 (source: Alibaba Cloud Agent Sandbox billing overview) | 0.43x | VM | not published | not published | not published |
| Prime Intellect vs E2B | $0.090 (source: Prime Intellect Sandboxes docs) | 0.54x | microVM | 60 min default, no lifetime limit when set | No | not published |
| Freestyle vs E2B | $0.132 (source: Freestyle Pricing) | 0.80x | VM | No limit stated ("can run forever") | not published | not published |
| Together Code vs E2B | $0.149 (source: Together AI Pricing) | 0.90x | microVM | not published | not published | not published |
| Hyperbrowser vs E2B | $0.150 (source: hyperbrowser.ai/pricing) | 0.91x | VM | not published | not published | not published |
| Fly.io Sprites vs E2B | $0.165 (source: Fly.io Sprites) | 0.99x | VM | not published | not published | not published |
| Hopx vs E2B | $0.166 (source: Hopx Pricing) | 1.00x | Firecracker microVM | No execution time limit ("hours, days, or weeks") | not published | not published |
| Cloudflare Sandbox SDK / Containers vs E2B | $0.180 (source: Cloudflare Containers pricing) | 1.09x | Firecracker microVM | not published | not published | not published |
| Tensorlake vs E2B | $0.200 (source: Tensorlake Pricing) | 1.21x | Firecracker microVM | 2 h (Free), 24 h (Usage Credits), unlimited (Pro) | Yes | not published |
| Amazon Bedrock AgentCore Code Interpreter vs E2B | $0.217 (source: Amazon Bedrock AgentCore Pricing) | 1.31x | microVM | 15 min default, extendable to 8 h | not published | not published |
| Runloop vs E2B | $0.317 (source: Runloop Pricing) | 1.91x | microVM | not published | not published | not published |
| Vercel vs E2B | $0.341 (source: Vercel Sandbox pricing and quotas) | 2.06x | Firecracker microVM | 45 min (Hobby), 24 h (Pro/Enterprise) per session; persistent sandboxes resume indefinitely | not published | not published |
| AWS Lambda MicroVMs vs E2B | not comparable | — | Firecracker microVM | not published | not published | not published |
| Azure Container Apps Dynamic Sessions vs E2B | not comparable | — | Hyper-V | Ends after configurable cooldown with no activity | not published | not published |
| Blaxel vs E2B | not comparable | — | microVM | not published | not published | not published |
| Deno vs E2B | not comparable | — | microVM | Up to 30 minutes per sandbox session | not published | not published |
| Docker vs E2B | not comparable | — | microVM | not published | not published | Yes |
| Fly Machines vs E2B | not comparable | — | Firecracker microVM | not published | not published | not published |
| Hugging Face vs E2B | not comparable | — | VM | 24 h hard maximum; 10 min default idle timeout | Yes | not published |
| Koyeb vs E2B | not comparable | — | microVM | Auto-delete up to 24 h after creation (12 h after scale-to-zero) | Yes | not published |
| microsandbox vs E2B | free software | — | microVM | not published | not published | Yes |
| Morph Cloud vs E2B | not comparable | — | VM | not published | not published | not published |
| OpenAI Containers vs E2B | not comparable | — | VM | Expires after 20 minutes without use | not published | not published |
| OpenSandbox vs E2B | free software | — | Firecracker microVM | not published | not published | Yes |
| Orgo vs E2B | not comparable | — | VM | not published | not published | not published |
Isolation is what each vendor states. A container or gVisor sandbox can be right for trusted workloads; for model-written code you do not control, a dedicated kernel is the stronger boundary. Each provider has its own page with every field, source and a pick-or-stay verdict against E2B.
Other E2B comparisons
- E2B alternatives cheaper than E2BWhich sandboxes cost less than E2B for the same box?
- Self-hosted E2B alternativesWhich E2B alternatives can I run on my own hardware or cluster?
- E2B alternatives with GPU sandboxesWhich E2B alternatives offer GPU sandboxes?
- E2B alternatives from AWS, Azure, Google Cloud, Alibaba and CloudflareWhich cloud providers sell a first-party E2B alternative?