Krova Cloud vs E2B
Sandboxes for AI agents and code interpreters, driven by an SDK. Here is the same machine priced both ways, the arithmetic that produced each number, and what a Cube gives you beyond the price.
Cubes from $2.92/moThis machine $10.22/moNo credit card to sign up
At 2 vCPU · 4 GB RAM, Krova Cloud costs
92%
less than E2B
Their figure read from their own pricing page on
The same machine, both prices
Both sides priced at 2 vCPU · 4 GB RAM · 40 GB disk, running 24/7. Theirs comes from their own pricing page; ours is computed from the live rate card the product bills from.
Krova Cloud
$10.22 /mo
$0.0140/hr · billed by the minute
E2B
$120.89 /mo
$0.1656/hr · plus a $150/mo platform fee
At this size Krova Cloud costs 92% less than E2B on usage alone — before their $150/month platform fee, which would take it to 26.5×.
What you get on a Cube that you don't get there
Price is the headline. This is the part that decides whether you stay.
No session limit. Their sandboxes stop at 1 hour on Hobby and 24 hours on Pro — a Cube runs until you stop it.
No monthly platform fee. Pro is $150/month before you run anything.
Full root access into a real Linux server, not only an SDK surface — systemd, Docker, kernel modules, any package manager.
Snapshot a warm base once, then clone it into a fresh Cube per agent run. Every run starts from a known-good machine instead of rebuilding the environment.
Export any Cube as a portable .cube archive and import it again. Your agent environment is a file you hold, not a state that only exists inside one vendor.
Automatic scheduled snapshots with real retention, kept in encrypted, content-addressed storage and bundled into the plan with no per-GB charge — so a wrecked sandbox is a restore, not a rebuild.
The same Cube can become your production host, so there is no migration when the experiment works.
Before you decide
Where do these E2B numbers come from?
From E2B's own pricing page, opened in a browser and read off it on 2026-08-04 — not from a blog post, a comparison site or memory. The rates and the arithmetic are printed above so you can redo the sum yourself, and a build-time guard fails once any comparison on this site passes ninety days, so a stale reading cannot sit here quietly.
Why is Krova Cloud cheaper at the same size?
You pay per resource — $0.001 per vCPU-hour, $0.0025 per GB of RAM and $0.00005 per GB of disk — instead of buying a fixed plan and rounding up to whatever it includes. There is no subscription, so what you pay for is the machine you asked for, by the minute — and every GB of RAM and disk in it is reserved 1:1 against real hardware.
What am I committing to?
Nothing monthly. There is no subscription and no minimum — you top up prepaid credit and pay for the minutes a Cube runs, and powering one off stops compute billing that same minute, with only its disk still billing. Signing up is free. Claim $5 in free credit — one-time, per account, and nothing is charged for it.
What exactly is a Cube?
A Firecracker microVM with its own Linux kernel and full root access, inside a per-cube jailer sandbox — install anything, run systemd, run Docker, and leave it up as long as you like. Your app is public; your server isn't: outbound is unrestricted, so package installs, image pulls and API calls all work normally, while nothing reaches in until you map a port, and every mapping takes an IP allowlist. Custom domains run through the managed HTTPS ingress, so the origin is never exposed.
Run the same machine for $10.22 a month
No subscription and no minimum — top up prepaid credit, size a Cube however you like, and compute billing stops the minute you power it off. Signing up is free. Claim $5 in free credit — one-time, per account, and nothing is charged for it.