Prime Sandboxes vs Shardflux
Prime Sandboxes costs $0.02 per vCPU-hour and Shardflux costs $0.04 per vCPU-hour. Prime Sandboxes runs microVMs and has no session limit. Shardflux runs Firecracker microVMs and offers GPUs.
Updated
Prime Sandboxes
- Isolation
- MicroVM
- Free tier
- Not listed
- Max session
- No limit
Shardflux
- Isolation
- Firecracker microVM
- Free tier
- 30-day Pro trial, no card needed
- Max session
- Not listed
What is different
9 fields differ. The rest are the same or not listed.
Prime Sandboxes
Shardflux
- vCPU, per hour
- Prime Sandboxes: $0.02
- Shardflux: $0.04
- RAM, per GiB-hour
- Prime Sandboxes: $0.0125
- Shardflux: $0.015
- Storage
- Prime Sandboxes: $0.0002 per GiB-hour
- Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
- Paid plan from
- Prime Sandboxes: Pay as you go
- Shardflux: $9 / month
- Billing
- Prime Sandboxes: Per second
- Shardflux: Active CPU time only
- Largest sandbox
- Prime Sandboxes: 16 vCPU · 64 GiB
- Shardflux: 32 vCPU · 64 GiB
- Concurrent sandboxes
- Prime Sandboxes: Up to 1,024
- Shardflux: Up to 200
- Isolation
- Prime Sandboxes: MicroVM
- Shardflux: Firecracker microVM
- SDKs
- Prime Sandboxes: Python
- Shardflux: TypeScript, Python
Full comparison
18 fields, at each provider's list price
Prime Sandboxesdocs
Shardfluxshardflux
Pricing
- vCPU, per hour
- Prime Sandboxes: $0.02
- Shardflux: $0.04
- RAM, per GiB-hour
- Prime Sandboxes: $0.0125
- Shardflux: $0.015
- Storage
- Prime Sandboxes: $0.0002 per GiB-hour
- Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
- Free tier
- Prime Sandboxes: Not listed
- Shardflux: 30-day Pro trial, no card needed
- Paid plan from
- Prime Sandboxes: Pay as you go
- Shardflux: $9 / month
- Billing
- Prime Sandboxes: Per second
- Shardflux: Active CPU time only
Limits
- Max session
- Prime Sandboxes: No limit
- Shardflux: Not listed
- Idle stop
- Prime Sandboxes: Not listed
- Shardflux: Not listed
- Largest sandbox
- Prime Sandboxes: 16 vCPU · 64 GiB
- Shardflux: 32 vCPU · 64 GiB
- Concurrent sandboxes
- Prime Sandboxes: Up to 1,024
- Shardflux: Up to 200
Platform
- Isolation
- Prime Sandboxes: MicroVM
- Shardflux: Firecracker microVM
- GPU
- Prime Sandboxes: Not listed
- Shardflux:
- Snapshots
- Prime Sandboxes:
- Shardflux:
- Pause and resume
- Prime Sandboxes: Not listed
- Shardflux:
Developer
- SDKs
- Prime Sandboxes: Python
- Shardflux: TypeScript, Python
- Integrations
- Prime Sandboxes: Not listed
- Shardflux: Claude Code, MCP
Trust
- License
- Prime Sandboxes: Not listed
- Shardflux: Not listed
- BYOC
- Prime Sandboxes: Not listed
- Shardflux: Not listed
Hourly cost
One sandbox running for one hour
Prime Sandboxes
Shardflux
- 1 vCPU · 2 GiB
- Prime Sandboxes: $0.045
- Shardflux: $0.070
- 2 vCPU · 4 GiB
- Prime Sandboxes: $0.090
- Shardflux: $0.140
- 4 vCPU · 8 GiB
- Prime Sandboxes: $0.180
- Shardflux: $0.280
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Prime Sandboxes fits when
- You want to pay only for usage, with no plan fee.
- 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 use Claude Code or MCP.
- You need pause and resume.
- You need a desktop in the sandbox.
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