Cloudflare Sandbox vs Isorun

Cloudflare Sandbox costs $0.072 per vCPU-hour and Isorun costs $0.025 per vCPU-hour. Cloudflare Sandbox runs Firecracker microVMs. Isorun runs microVMs.

Updated Oct 14, 2026

Cloudflare Sandbox

Containers at the edge, driven from a Worker.

Isolation: Firecracker microVM
Free tier: None
Max session: Not listed

Visit site Cloudflare Sandbox profile

Isorun

Isolated Linux microVMs from any Docker image.

Isolation: MicroVM
Free tier: $50 credit
Max session: Not listed

Visit site Isorun profile

What is different

7 fields differ. The rest are the same or not listed.

Field

Cloudflare Sandbox

Isorun

vCPU, per hour: Cloudflare Sandbox: $0.072; Isorun: $0.025
RAM, per GiB-hour: Cloudflare Sandbox: $0.009; Isorun: $0.015
Storage: Cloudflare Sandbox: $0.000252 per GiB-hour; Isorun: Persistent disk $0.02 per GB-month for data stored
Free tier: Cloudflare Sandbox: None; Isorun: $50 credit
Paid plan from: Cloudflare Sandbox: $5 / month; Isorun: Pay as you go
Billing: Cloudflare Sandbox: Active CPU time only; Isorun: Per second
Isolation: Cloudflare Sandbox: Firecracker microVM; Isorun: MicroVM

Full comparison

18 fields, at each provider's list price

Cloudflare Sandboxdevelopers.cloudflare.com/containers/platform/pricingdevelopers.cloudflare.com

Isorundocs.isorun.ai/getting-started/pricingdocs.isorun.ai

Pricing

vCPU, per hour: Cloudflare Sandbox: $0.072; Isorun: $0.025
RAM, per GiB-hour: Cloudflare Sandbox: $0.009; Isorun: $0.015
Storage: Cloudflare Sandbox: $0.000252 per GiB-hour; Isorun: Persistent disk $0.02 per GB-month for data stored
Free tier: Cloudflare Sandbox: None; Isorun: $50 credit
Paid plan from: Cloudflare Sandbox: $5 / month; Isorun: Pay as you go
Billing: Cloudflare Sandbox: Active CPU time only; Isorun: Per second

Limits

Max session: Cloudflare Sandbox: Not listed; Isorun: Not listed
Idle stop: Cloudflare Sandbox: Not listed; Isorun: Not listed
Largest sandbox: Cloudflare Sandbox: 4 vCPU · 12 GiB; Isorun: Not listed
Concurrent sandboxes: Cloudflare Sandbox: Not listed; Isorun: Not listed

Platform

Isolation: Cloudflare Sandbox: Firecracker microVM; Isorun: MicroVM
GPU: Cloudflare Sandbox: Not listed; Isorun: Not listed
Snapshots: Cloudflare Sandbox:; Isorun:
Pause and resume: Cloudflare Sandbox: Not listed; Isorun:

Developer

SDKs: Cloudflare Sandbox: TypeScript; Isorun: TypeScript
Integrations: Cloudflare Sandbox: Not listed; Isorun: LangChain, OpenAI Agents SDK, MCP

Trust

License: Cloudflare Sandbox: Not listed; Isorun: Not listed
BYOC: Cloudflare Sandbox: Not listed; Isorun: Not listed

Hourly cost

One sandbox running for one hour

Size

Cloudflare Sandbox

Isorun

1 vCPU · 2 GiB: Cloudflare Sandbox: $0.090; Isorun: $0.055
2 vCPU · 4 GiB: Cloudflare Sandbox: $0.180; Isorun: $0.110
4 vCPU · 8 GiB: Cloudflare Sandbox: $0.360; Isorun: $0.220

Compute only, at list rates.

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Which one fits

Based on the fields above

Cloudflare Sandbox fits when

Your code waits a lot: CPU is billed only while it is in use.

Isorun fits when

You want to pay only for usage, with no plan fee.
You use LangChain, the OpenAI Agents SDK or MCP.
You want the lower list price: $0.110 against $0.180 an hour for 2 vCPU and 4 GiB.
You want to start without paying.

More comparisons

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Cloudflare Sandbox

Isorun

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Cloudflare Sandbox fits when

Isorun fits when

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