jurniti vs E2B°
E2B sells ephemeral, per-second sandboxes that your application spins up per end-user request. jurniti runs one always-on, per-tenant agent that holds your keys and state. Both use Firecracker; the products are orthogonal.
| jurniti | E2B | |
|---|---|---|
| Isolation | Per-tenant Firecracker microVM (KVM hardware boundary); 1 vCPU = 1 physical core. | Firecracker microVMs (their own fork) — the same hardware-isolation primitive jurniti uses. Ephemeral by default; pause/resume between calls. |
| Pricing | Flat $25–$99/mo, no metered surprises. | Hobby free tier, Pro from $150/mo plus per-second vCPU/RAM metering; Enterprise custom. Self-host is free (Apache-2.0). |
| Model keys | BYOK inside your VM — model traffic never traverses jurniti. | Pure compute — E2B never touches model keys; your app passes them into the sandbox at runtime. Same clean posture as jurniti. |
Where jurniti is different
- Flat monthly price, no per-second meter to forecast or get surprised by.
- Always-on per-tenant VM that holds state and credentials — not an ephemeral sandbox torn down after each call.
- A managed dashboard, lifecycle, and harness install — not an SDK you wire into your own application.
- Priced for a solo builder running one production agent, well under E2B's $150/mo Pro floor.
Where E2B is strong
- The same Firecracker hardware-isolation boundary jurniti relies on.
- Per-second metering is far cheaper when an agent runs for seconds per invocation across many end users.
- Scales to thousands of concurrent ephemeral sandboxes (Pro up to ~1,100; Enterprise far higher).
- Self-host / VPC deployment (Apache-2.0) answers data-sovereignty needs jurniti has no answer for today.
- A large open-source ecosystem and named enterprise traction.
When to pick one — or both
Pick E2B when your product spins agents up per end-user request at scale, or you need to embed a sandbox SDK inside your own application, or you need to self-host inside your own cloud.
Pick jurniti when your agent holds production credentials, runs code an LLM returned, and you want a real per-tenant hardware boundary with your keys inside your VM — at a flat monthly price.
Run Claude Code on a real Firecracker microVM. Provision in ~3 minutes after payment. If it is not worth it within 30 days, email us and we refund you.
jurniti vs E2B — questions
Not at the buyer level. Both run Firecracker, but E2B sells ephemeral per-call compute to AI application builders, while jurniti runs an always-on, per-tenant agent for one builder. The overlap is prospect confusion, not the same purchase.
It depends on your shape. For a bursty agent that runs seconds per call across many users, E2B's per-second meter is cheaper. For one agent running continuously, jurniti's flat monthly plan is cheaper than forcing E2B's metered model into an always-on box.
See managed Claude Code on jurniti →
Read the guide →Related comparisons →
Competitor facts are sourced and re-verified (last checked 2026-07-22). E2B is a trademark of its owner, named here only for comparison.