Lelantos vs E2B: the cheaper, EU-native sandbox
A drop-in E2B-compatible sandbox: $2.78/day with no base fee (vs E2B Pro's $8.97), 394 ms start from the EU (vs 589 ms). Migrate by changing one line.
The spine of the move
No $150/month base fee
E2B Pro is $8.97 per day at 2 vCPU and 4 GiB because it bundles a $150 per month base fee. Lelantos is $2.78 per day with no base fee, per-second billing, no minimums.
EU-native by default
Every Lelantos sandbox runs in the EU. E2B has an EU region, but it is Pro-gated and provisioned on request, not the default.
Faster start from the EU
From Copenhagen, Lelantos starts in 394 ms at p50 versus E2B 589 ms, and resumes in 368 ms versus 841 ms.
Drop-in compatible
Lelantos runs the e2b SDK directly. Point it at lelantos.ai by changing one line and your existing code runs unchanged.
Lelantos vs E2B, the cells that matter
| Dimension | Lelantos | E2B |
|---|---|---|
| Cost / day (2 vCPU, 4 GiB) | $2.78, no base fee | $8.97, incl. $150/mo base fee |
| Start time (EU p50) | 394 ms | 589 ms |
| Resume (EU p50) | 368 ms | 841 ms |
| EU data residency | native, default | Pro-gated, on request |
| E2B-compatible API | yes, drop-in | the standard |
| Isolation | Firecracker microVM | Firecracker microVM |
| Open source | SDKs | SDK + self-hostable infra |
| p99 start consistency | wider warm-pool tail | tighter |
Already on E2B? Change one line
Lelantos is API-compatible with E2B. Point the SDK at lelantos.ai and your existing code runs unchanged. No rewrite, no new SDK to learn.
from e2b import Sandbox
sandbox = Sandbox.create(
template="base",
api_key="<your-lelantos-key>",
domain="lelantos.ai", # the one line you change
)The honest note
Both Lelantos and E2B run on Firecracker, so isolation is a tie. E2B is more open source (Apache-2.0, with self-hostable infrastructure) and is a little more consistent at the p99 tail, where our warm-pool path occasionally drops to the cold tier. We lead on cost, EU residency and the typical-case start, which is what most workloads feel.
Questions people ask
- Is Lelantos cheaper than E2B?
- Yes. At 2 vCPU and 4 GiB over 24 hours, Lelantos costs $2.78 per day with no base fee, versus E2B Pro at $8.97 per day, which includes a $150 per month base fee.
- Does Lelantos run in the EU?
- Yes. Every Lelantos sandbox runs in the EU by default. E2B offers an EU region, but it is Pro-gated and provisioned on request.
- Is Lelantos faster than E2B?
- From the EU, yes at the median: Lelantos starts in 394 ms versus E2B 589 ms, and resumes in 368 ms versus 841 ms, measured from Copenhagen on 2026-06-17. E2B is a little more consistent at the p99 tail.
- How do I migrate from E2B to Lelantos?
- You change one line. Lelantos runs the e2b SDK directly, so you point the SDK at lelantos.ai (for example domain: "lelantos.ai") and your existing E2B code runs unchanged.
- Is Lelantos isolated like E2B?
- Yes. Both Lelantos and E2B run each sandbox in a Firecracker microVM, so the isolation boundary is the same.
Run your E2B code in the EU, for $2.78 a day
$50 free credit. No credit card to start. Change one line and keep your code.