inis.run vs Shellbox

Shellbox costs $0.01 per vCPU-hour. inis.run runs full VMs and limits a session to 24 hours. Shellbox runs Firecracker microVMs and has no session limit.

Updated Oct 23, 2026

inis.run

Isolated Linux sandboxes for AI-generated code.

Isolation: Full VM
Free tier: €1.00 free trial credit, no card required
Max session: 24 hours

Visit site inis.run 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

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

Field

inis.run

Shellbox

Storage: inis.run: Paused sessions and persistent volumes cost about €0.07 per GB per month. Paused sessions are billed for storage, not compute.; Shellbox: A stopped box costs $0.50 per x1 slot per month
Max session: inis.run: 24 hours; Shellbox: No limit
Largest sandbox: inis.run: 4 vCPU · 8 GiB; Shellbox: 16 vCPU · 32 GiB
Concurrent sandboxes: inis.run: Up to 10; Shellbox: Up to 16
Isolation: inis.run: Full VM; Shellbox: Firecracker microVM
Integrations: inis.run: Vercel AI SDK, LangChain, OpenAI Agents SDK, MCP; Shellbox: Claude Code

Full comparison

18 fields, at each provider's list price

inis.runinis.run/pricing

Shellboxshellbox.dev/#pricingshellbox.dev

Pricing

vCPU, per hour: inis.run: Not listed; Shellbox: $0.01
RAM, per GiB-hour: inis.run: Included; Shellbox: Included
Storage: inis.run: Paused sessions and persistent volumes cost about €0.07 per GB per month. Paused sessions are billed for storage, not compute.; Shellbox: A stopped box costs $0.50 per x1 slot per month
Free tier: inis.run: €1.00 free trial credit, no card required; Shellbox: Not listed
Paid plan from: inis.run: Pay as you go; Shellbox: Pay as you go
Billing: inis.run: Bundled machine time; Shellbox: Bundled machine time

Limits

Max session: inis.run: 24 hours; Shellbox: No limit
Idle stop: inis.run: Not listed; Shellbox: After 2 minutes
Largest sandbox: inis.run: 4 vCPU · 8 GiB; Shellbox: 16 vCPU · 32 GiB
Concurrent sandboxes: inis.run: Up to 10; Shellbox: Up to 16

Platform

Isolation: inis.run: Full VM; Shellbox: Firecracker microVM
GPU: inis.run: No; Shellbox: Not listed
Snapshots: inis.run:; Shellbox:
Pause and resume: inis.run:; Shellbox:

Developer

SDKs: inis.run: Python, TypeScript; Shellbox: Not listed
Integrations: inis.run: Vercel AI SDK, LangChain, OpenAI Agents SDK, MCP; Shellbox: Claude Code

Trust

License: inis.run: Not listed; Shellbox: Not listed
BYOC: inis.run: In your own cloud account, from €30,000/year; Shellbox: Not listed

Hourly cost

One sandbox running for one hour

Size

inis.run

Shellbox

1 vCPU · 2 GiB: inis.run: Not listed; Shellbox: $0.010
2 vCPU · 4 GiB: inis.run: Not listed; Shellbox: $0.020
4 vCPU · 8 GiB: inis.run: Not listed; Shellbox: $0.040

Compute only, at list rates.

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Which one fits

Based on the fields above

inis.run fits when

You want each sandbox to be a full VM.
You use the Vercel AI SDK, LangChain, the OpenAI Agents SDK or MCP.
You need the sandboxes in your own cloud account.

Shellbox fits when

A session must run longer than 24 hours.
You want each sandbox in its own microVM.
You use Claude Code.
You need a sandbox larger than 4 vCPU · 8 GiB.

More comparisons

See all comparisons

inis.run

Shellbox

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

inis.run fits when

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