Sandbox as a Service vs Shardflux
Sandbox as a Service costs $0.045 per vCPU-hour and Shardflux costs $0.04 per vCPU-hour. Sandbox as a Service runs full VMs and limits a session to 24 hours. Shardflux runs Firecracker microVMs and offers GPUs.
Updated
Sandbox as a Service
- Isolation
- Full VM
- Free tier
- $5 credit
- Max session
- 24 hours
Shardflux
- Isolation
- Firecracker microVM
- Free tier
- 30-day Pro trial, no card needed
- Max session
- Not listed
What is different
10 fields differ. The rest are the same or not listed.
Sandbox as a Service
Shardflux
- vCPU, per hour
- Sandbox as a Service: $0.045
- Shardflux: $0.04
- RAM, per GiB-hour
- Sandbox as a Service: Included
- Shardflux: $0.015
- Free tier
- Sandbox as a Service: $5 credit
- Shardflux: 30-day Pro trial, no card needed
- Paid plan from
- Sandbox as a Service: Pay as you go
- Shardflux: $9 / month
- Billing
- Sandbox as a Service: Bundled machine time
- Shardflux: Active CPU time only
- Largest sandbox
- Sandbox as a Service: 8 vCPU · 16 GiB
- Shardflux: 32 vCPU · 64 GiB
- Concurrent sandboxes
- Sandbox as a Service: Up to 20
- Shardflux: Up to 200
- Isolation
- Sandbox as a Service: Full VM
- Shardflux: Firecracker microVM
- SDKs
- Sandbox as a Service: Python, JavaScript / TypeScript
- Shardflux: TypeScript, Python
- Integrations
- Sandbox as a Service: MCP
- Shardflux: Claude Code, MCP
Full comparison
18 fields, at each provider's list price
Sandbox as a Servicesandbox-as-a-service
Shardfluxshardflux
Pricing
- vCPU, per hour
- Sandbox as a Service: $0.045
- Shardflux: $0.04
- RAM, per GiB-hour
- Sandbox as a Service: Included
- Shardflux: $0.015
- Storage
- Sandbox as a Service: Not listed
- Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
- Free tier
- Sandbox as a Service: $5 credit
- Shardflux: 30-day Pro trial, no card needed
- Paid plan from
- Sandbox as a Service: Pay as you go
- Shardflux: $9 / month
- Billing
- Sandbox as a Service: Bundled machine time
- Shardflux: Active CPU time only
Limits
- Max session
- Sandbox as a Service: 24 hours
- Shardflux: Not listed
- Idle stop
- Sandbox as a Service: Not listed
- Shardflux: Not listed
- Largest sandbox
- Sandbox as a Service: 8 vCPU · 16 GiB
- Shardflux: 32 vCPU · 64 GiB
- Concurrent sandboxes
- Sandbox as a Service: Up to 20
- Shardflux: Up to 200
Platform
- Isolation
- Sandbox as a Service: Full VM
- Shardflux: Firecracker microVM
- GPU
- Sandbox as a Service: Not listed
- Shardflux:
- Snapshots
- Sandbox as a Service:
- Shardflux:
- Pause and resume
- Sandbox as a Service: Not listed
- Shardflux:
Developer
- SDKs
- Sandbox as a Service: Python, JavaScript / TypeScript
- Shardflux: TypeScript, Python
- Integrations
- Sandbox as a Service: MCP
- Shardflux: Claude Code, MCP
Trust
- License
- Sandbox as a Service: Not listed
- Shardflux: Not listed
- BYOC
- Sandbox as a Service: Not listed
- Shardflux: Not listed
Hourly cost
One sandbox running for one hour
Sandbox as a Service
Shardflux
- 1 vCPU · 2 GiB
- Sandbox as a Service: $0.045
- Shardflux: $0.070
- 2 vCPU · 4 GiB
- Sandbox as a Service: $0.090
- Shardflux: $0.140
- 4 vCPU · 8 GiB
- Sandbox as a Service: $0.180
- Shardflux: $0.280
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Sandbox as a Service fits when
- You want to pay only for usage, with no plan fee.
- You want each sandbox to be a full VM.
- You want the lower list price: $0.090 against $0.140 an hour for 2 vCPU and 4 GiB.
Shardflux fits when
- You need GPUs.
- You want each sandbox in its own microVM.
- You use Claude Code.
- You need pause and resume.
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