microsandbox cloud vs Shardflux

microsandbox cloud costs $0.05 per vCPU-hour and Shardflux costs $0.04 per vCPU-hour. microsandbox cloud runs microVMs. Shardflux runs Firecracker microVMs and offers GPUs.

Updated

microsandbox cloud

Isolation
MicroVM
Free tier
Free plan, 5 computer-hours a month
Max session
Not listed

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.

microsandbox cloud
Shardflux
vCPU, per hour
microsandbox cloud: $0.05
Shardflux: $0.04
RAM, per GiB-hour
microsandbox cloud: $0.0162
Shardflux: $0.015
Storage
microsandbox cloud: $0.0001 per GiB-hour
Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier
microsandbox cloud: Free plan, 5 computer-hours a month
Shardflux: 30-day Pro trial, no card needed
Paid plan from
microsandbox cloud: $49 / month
Shardflux: $9 / month
Billing
microsandbox cloud: Per second
Shardflux: Active CPU time only
Concurrent sandboxes
microsandbox cloud: Up to 25,000
Shardflux: Up to 200
Isolation
microsandbox cloud: MicroVM
Shardflux: Firecracker microVM
Pause and resume
microsandbox cloud: No
Shardflux:
SDKs
microsandbox cloud: Python, TypeScript, Rust, Go, Ruby
Shardflux: TypeScript, Python

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
microsandbox cloud: $0.05
Shardflux: $0.04
RAM, per GiB-hour
microsandbox cloud: $0.0162
Shardflux: $0.015
Storage
microsandbox cloud: $0.0001 per GiB-hour
Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier
microsandbox cloud: Free plan, 5 computer-hours a month
Shardflux: 30-day Pro trial, no card needed
Paid plan from
microsandbox cloud: $49 / month
Shardflux: $9 / month
Billing
microsandbox cloud: Per second
Shardflux: Active CPU time only

Limits

Max session
microsandbox cloud: Not listed
Shardflux: Not listed
Idle stop
microsandbox cloud: Not listed
Shardflux: Not listed
Largest sandbox
microsandbox cloud: Not listed
Shardflux: 32 vCPU · 64 GiB
Concurrent sandboxes
microsandbox cloud: Up to 25,000
Shardflux: Up to 200

Platform

Isolation
microsandbox cloud: MicroVM
Shardflux: Firecracker microVM
GPU
microsandbox cloud: Not listed
Shardflux:
Snapshots
microsandbox cloud:
Shardflux:
Pause and resume
microsandbox cloud: No
Shardflux:

Developer

SDKs
microsandbox cloud: Python, TypeScript, Rust, Go, Ruby
Shardflux: TypeScript, Python
Integrations
microsandbox cloud: Claude Code, MCP
Shardflux: Claude Code, MCP

Trust

License
microsandbox cloud: Apache-2.0
Shardflux: Not listed
BYOC
microsandbox cloud: By evaluation, contact us
Shardflux: Not listed

Hourly cost

One sandbox running for one hour

microsandbox cloud
Shardflux
1 vCPU · 2 GiB
microsandbox cloud: $0.082
Shardflux: $0.070
2 vCPU · 4 GiB
microsandbox cloud: $0.165
Shardflux: $0.140
4 vCPU · 8 GiB
microsandbox cloud: $0.330
Shardflux: $0.280

Compute only, at list rates.

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Which one fits

Based on the fields above

microsandbox cloud fits when

  • You want an open-source platform (Apache-2.0) that you can self-host.
  • You need the sandboxes in your own cloud account.

Shardflux fits when

  • You need GPUs.
  • You want the lower list price: $0.140 against $0.165 an hour for 2 vCPU and 4 GiB.
  • You need pause and resume.
  • You need a desktop in the sandbox.

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