Which AI sandbox is cheapest per vCPU-hour?

Northflank tops this list. Northflank runs sandboxes with selectable Kata/gVisor microVM isolation, unlimited session duration, any OCI image and BYOC deployment, at the lowest published vCPU rate in the category. The full ranking, with methodology and dates, is below.

Ranked · neutral · dated

The cheapest AI sandboxes by vCPU-hour

Headline compute rates for AI code sandboxes, cheapest first. Idle cost, session length and creation fees often matter more than the sticker rate. Model your workload in the calculator.

Verified 2026-07-26

1

Northflank AI code-execution sandbox
$0.01667/vCPU-hr · Usage-based

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2

Freestyle AI code-execution sandbox
$0.04/vCPU-hr · Per-second usage + plan

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3

AWS Fargate AI code-execution sandbox
$0.04048/vCPU-hr · Per-second (vCPU + GB), 1-min minimum

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4

E2B AI code-execution sandbox
$0.05/vCPU-hr · Per-second usage + plan

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5

Daytona AI code-execution sandbox
$0.05/vCPU-hr · Usage-based

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6

CodeSandbox SDK AI code-execution sandbox
$0.05/vCPU-hr · Usage-based

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7

Deno Sandbox AI code-execution sandbox
$0.05/vCPU-hr · Usage-based (CPU time), via Deno Deploy

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8

Fly.io Machines AI code-execution sandbox
$0.07/vCPU-hr · Usage + concurrency plans

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9

Fly.io Sprites AI code-execution sandbox
$0.07/vCPU-hr · Per-hour usage (CPU + memory + storage)

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10

Cloudflare Sandbox SDK AI code-execution sandbox
$0.072/vCPU-hr · Workers Paid + active CPU

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11

Blaxel AI code-execution sandbox
$0.083/vCPU-hr · Tiered + usage

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12

Runloop AI code-execution sandbox
$0.108/vCPU-hr · Plan + usage

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13

Vercel Sandbox AI code-execution sandbox
$0.128/vCPU-hr · Active CPU + per-creation fee

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14

Modal AI code-execution sandbox
$0.14/vCPU-hr · Per-second usage

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How we ranked this

Ranked by published headline $/vCPU-hour, cheapest first. The headline rate is only part of the bill: idle/paused cost, per-creation fees and session caps can reorder real spend, so treat this as a starting point.

Rankings reflect published specs as of the verified date and are not paid placements. Corrections welcome at [email protected].

The cheapest AI sandboxes by vCPU-hour

How we ranked this

What moved in the sandbox world, every Friday.