Brimble Sandboxes vs Shellbox
Shellbox costs $0.01 per vCPU-hour. Brimble Sandboxes runs gVisor and limits a session to 6 hours. Shellbox runs Firecracker microVMs and has no session limit.
Updated
Brimble Sandboxes
- Isolation
- gVisor
- Free tier
- 7-day Developer plan trial, card required
- Max session
- 6 hours
Shellbox
- Isolation
- Firecracker microVM
- Free tier
- Not listed
- Max session
- No limit
What is different
8 fields differ. The rest are the same or not listed.
Brimble Sandboxes
Shellbox
- Storage
- Brimble Sandboxes: Snapshot storage and persistent volumes bill at storage rates
- Shellbox: A stopped box costs $0.50 per x1 slot per month
- Paid plan from
- Brimble Sandboxes: $3 / month
- Shellbox: Pay as you go
- Billing
- Brimble Sandboxes: Per second
- Shellbox: Bundled machine time
- Max session
- Brimble Sandboxes: 6 hours
- Shellbox: No limit
- Largest sandbox
- Brimble Sandboxes: 4 vCPU · 8 GiB
- Shellbox: 16 vCPU · 32 GiB
- Concurrent sandboxes
- Brimble Sandboxes: Up to 15
- Shellbox: Up to 16
- Isolation
- Brimble Sandboxes: gVisor
- Shellbox: Firecracker microVM
- Integrations
- Brimble Sandboxes: MCP, Claude Code
- Shellbox: Claude Code
Full comparison
18 fields, at each provider's list price
Brimble Sandboxesbrimble
Shellboxshellbox
Pricing
- vCPU, per hour
- Brimble Sandboxes: Not listed
- Shellbox: $0.01
- RAM, per GiB-hour
- Brimble Sandboxes: Not listed
- Shellbox: Included
- Storage
- Brimble Sandboxes: Snapshot storage and persistent volumes bill at storage rates
- Shellbox: A stopped box costs $0.50 per x1 slot per month
- Free tier
- Brimble Sandboxes: 7-day Developer plan trial, card required
- Shellbox: Not listed
- Paid plan from
- Brimble Sandboxes: $3 / month
- Shellbox: Pay as you go
- Billing
- Brimble Sandboxes: Per second
- Shellbox: Bundled machine time
Limits
- Max session
- Brimble Sandboxes: 6 hours
- Shellbox: No limit
- Idle stop
- Brimble Sandboxes: Not listed
- Shellbox: After 2 minutes
- Largest sandbox
- Brimble Sandboxes: 4 vCPU · 8 GiB
- Shellbox: 16 vCPU · 32 GiB
- Concurrent sandboxes
- Brimble Sandboxes: Up to 15
- Shellbox: Up to 16
Platform
- Isolation
- Brimble Sandboxes: gVisor
- Shellbox: Firecracker microVM
- GPU
- Brimble Sandboxes: Not listed
- Shellbox: Not listed
- Snapshots
- Brimble Sandboxes:
- Shellbox:
- Pause and resume
- Brimble Sandboxes:
- Shellbox:
Developer
- SDKs
- Brimble Sandboxes: JavaScript / TypeScript, Python, Go
- Shellbox: Not listed
- Integrations
- Brimble Sandboxes: MCP, Claude Code
- Shellbox: Claude Code
Trust
- License
- Brimble Sandboxes: Not listed
- Shellbox: Not listed
- BYOC
- Brimble Sandboxes: Not listed
- Shellbox: Not listed
Hourly cost
One sandbox running for one hour
Brimble Sandboxes
Shellbox
- 1 vCPU · 2 GiB
- Brimble Sandboxes: Not listed
- Shellbox: $0.010
- 2 vCPU · 4 GiB
- Brimble Sandboxes: Not listed
- Shellbox: $0.020
- 4 vCPU · 8 GiB
- Brimble Sandboxes: Not listed
- Shellbox: $0.040
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Brimble Sandboxes fits when
- You use MCP.
Shellbox fits when
- A session must run longer than 6 hours.
- You want to pay only for usage, with no plan fee.
- You want each sandbox in its own microVM.
- You need a sandbox larger than 4 vCPU · 8 GiB.
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