Cloudflare Sandbox

sandbox

Billed per 10 ms of active running. Memory and disk on the provisioned instance type; CPU on active usage only. Requires Workers Paid ($5/mo). Worker, Durable Object and log charges are extra.

Cost / task

$0.00754^1,2

at code-agent task conditions

Free tier

No free tier for Containers. Workers Paid ($5/mo) includes 375 vCPU-min, 25 GiB-h memory, 200 GB-h disk.developers.cloudflare.com · fetched 2026-10-17

Isolation

Each sandbox in its own VMdevelopers.cloudflare.com · fetched 2026-10-17

Status

No change since baselineVerified 2026-10-17 · pricing page · terms · Report bad data

Instance standard-3 (2 vCPU / 8 GiB).
Excludes Workers / Durable Objects charges and monthly included usage.

Sandbox pricing docs describe SDK 0.x (based on Containers). We found no separate pricing page for @cloudflare/sandbox 1.0, so treat these as Containers rates.

Mark Phelps, who runs ColdTally, works at Cloudflare. Disclosure.

Compared with other sandboxes

cost per task at code-agent task conditions

Cloudflare Sandbox in blue. Full ranking with sources on the compare page.

SDKs

TypeScript (runs in a Worker) · developers.cloudflare.com (opens in new tab) · fetched 2026-10-17

Rates

list prices, default region

Item	Rate	Fetched	Source
CPU (beyond 375 vCPU-min/mo included)	$0.00002 /vCPU-second	2026-10-17	developers.cloudflare.com (opens in new tab)
Memory (beyond 25 GiB-h/mo included)	$0.0000025 /GiB-second	2026-10-17	developers.cloudflare.com (opens in new tab)
Disk (beyond 200 GB-h/mo included)	$0.00000007 /GB-second	2026-10-17	developers.cloudflare.com (opens in new tab)
Egress NA/EU (beyond 1 TB)	$0.025 /GB	2026-10-17	developers.cloudflare.com (opens in new tab)

Plans

Plan	Monthly fee	Included	Concurrency	Max session	Source
Workers Paid	$5	375 vCPU-min, 25 GiB-h, 200 GB-h disk / mo	not listed	not listed	developers.cloudflare.com (opens in new tab)

Limits

Limit	Value	Source
Largest instance type	standard-4: 4 vCPU, 12 GiB, 20 GB disk	developers.cloudflare.com (opens in new tab)

Not yet verified

Separate pricing for Sandboxes 1.0 (if any)
Workers / Durable Objects charges per sandbox

Startup time

secondary; see methodology

Measured 2026-10-18

median 169 ms · p95 279 ms · 10/10 runs ok · n=10 · create + first command · Startup board

Changes

Full changelog

No changes recorded since the baseline (2026-10-17).