Isorun vs Shellbox

Isorun costs $0.025 per vCPU-hour and Shellbox costs $0.01 per vCPU-hour. Isorun runs microVMs. Shellbox runs Firecracker microVMs and has no session limit.

Updated Oct 23, 2026

Isorun

Isolated Linux microVMs from any Docker image.

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

Visit site Isorun profile

Shellbox

Linux microVMs for developers and AI agents, made and controlled over SSH.

Isolation: Firecracker microVM
Free tier: Not listed
Max session: No limit

Visit site Shellbox profile

What is different

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

Field

Isorun

Shellbox

vCPU, per hour: Isorun: $0.025; Shellbox: $0.01
RAM, per GiB-hour: Isorun: $0.015; Shellbox: Included
Storage: Isorun: Persistent disk $0.02 per GB-month for data stored; Shellbox: A stopped box costs $0.50 per x1 slot per month
Billing: Isorun: Per second; Shellbox: Bundled machine time
Idle stop: Isorun: After 5 minutes; Shellbox: After 2 minutes
Isolation: Isorun: MicroVM; Shellbox: Firecracker microVM
Integrations: Isorun: LangChain, OpenAI Agents SDK, MCP; Shellbox: Claude Code

Full comparison

18 fields, at each provider's list price

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

Shellboxshellbox.dev/#pricingshellbox.dev

Pricing

vCPU, per hour: Isorun: $0.025; Shellbox: $0.01
RAM, per GiB-hour: Isorun: $0.015; Shellbox: Included
Storage: Isorun: Persistent disk $0.02 per GB-month for data stored; Shellbox: A stopped box costs $0.50 per x1 slot per month
Free tier: Isorun: $50 credit; Shellbox: Not listed
Paid plan from: Isorun: Pay as you go; Shellbox: Pay as you go
Billing: Isorun: Per second; Shellbox: Bundled machine time

Limits

Max session: Isorun: Not listed; Shellbox: No limit
Idle stop: Isorun: After 5 minutes; Shellbox: After 2 minutes
Largest sandbox: Isorun: Not listed; Shellbox: 16 vCPU · 32 GiB
Concurrent sandboxes: Isorun: Not listed; Shellbox: Up to 16

Platform

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

Developer

SDKs: Isorun: TypeScript; Shellbox: Not listed
Integrations: Isorun: LangChain, OpenAI Agents SDK, MCP; Shellbox: Claude Code

Trust

License: Isorun: Not listed; Shellbox: Not listed
BYOC: Isorun: Not listed; Shellbox: Not listed

Hourly cost

One sandbox running for one hour

Size

Isorun

Shellbox

1 vCPU · 2 GiB: Isorun: $0.055; Shellbox: $0.010
2 vCPU · 4 GiB: Isorun: $0.110; Shellbox: $0.020
4 vCPU · 8 GiB: Isorun: $0.220; Shellbox: $0.040

Compute only, at list rates.

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Which one fits

Based on the fields above

Isorun fits when

You use LangChain, the OpenAI Agents SDK or MCP.
You need a desktop in the sandbox.

Shellbox fits when

You use Claude Code.
You want the lower list price: $0.020 against $0.110 an hour for 2 vCPU and 4 GiB.

More comparisons

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Isorun

Shellbox

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Isorun fits when

Shellbox fits when

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