Azure Container Apps Sandboxes vs Shardflux

Azure Container Apps Sandboxes costs $0.0864 per vCPU-hour and Shardflux costs $0.04 per vCPU-hour. Azure Container Apps Sandboxes runs microVMs. Shardflux runs Firecracker microVMs and offers GPUs.

Updated

Azure Container Apps Sandboxes

Isolation
MicroVM
Free tier
Not listed
Max session
Not listed

Shardflux

Isolation
Firecracker microVM
Free tier
30-day Pro trial, no card needed
Max session
Not listed

What is different

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

Azure Container Apps Sandboxes
Shardflux
vCPU, per hour
Azure Container Apps Sandboxes: $0.0864
Shardflux: $0.04
RAM, per GiB-hour
Azure Container Apps Sandboxes: $0.0108
Shardflux: $0.015
Storage
Azure Container Apps Sandboxes: Storage charge coming soon
Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Billing
Azure Container Apps Sandboxes: Per second
Shardflux: Active CPU time only
Largest sandbox
Azure Container Apps Sandboxes: 4 vCPU · 8 GiB
Shardflux: 32 vCPU · 64 GiB
Isolation
Azure Container Apps Sandboxes: MicroVM
Shardflux: Firecracker microVM
SDKs
Azure Container Apps Sandboxes: Python, TypeScript
Shardflux: TypeScript, Python
Integrations
Azure Container Apps Sandboxes: Claude Code
Shardflux: Claude Code, MCP

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Azure Container Apps Sandboxes: $0.0864
Shardflux: $0.04
RAM, per GiB-hour
Azure Container Apps Sandboxes: $0.0108
Shardflux: $0.015
Storage
Azure Container Apps Sandboxes: Storage charge coming soon
Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier
Azure Container Apps Sandboxes: Not listed
Shardflux: 30-day Pro trial, no card needed
Paid plan from
Azure Container Apps Sandboxes: Not listed
Shardflux: $9 / month
Billing
Azure Container Apps Sandboxes: Per second
Shardflux: Active CPU time only

Limits

Max session
Azure Container Apps Sandboxes: Not listed
Shardflux: Not listed
Idle stop
Azure Container Apps Sandboxes: Not listed
Shardflux: Not listed
Largest sandbox
Azure Container Apps Sandboxes: 4 vCPU · 8 GiB
Shardflux: 32 vCPU · 64 GiB
Concurrent sandboxes
Azure Container Apps Sandboxes: Not listed
Shardflux: Up to 200

Platform

Isolation
Azure Container Apps Sandboxes: MicroVM
Shardflux: Firecracker microVM
GPU
Azure Container Apps Sandboxes: Not listed
Shardflux:
Snapshots
Azure Container Apps Sandboxes:
Shardflux:
Pause and resume
Azure Container Apps Sandboxes:
Shardflux:

Developer

SDKs
Azure Container Apps Sandboxes: Python, TypeScript
Shardflux: TypeScript, Python
Integrations
Azure Container Apps Sandboxes: Claude Code
Shardflux: Claude Code, MCP

Trust

License
Azure Container Apps Sandboxes: Not listed
Shardflux: Not listed
BYOC
Azure Container Apps Sandboxes: Not listed
Shardflux: Not listed

Hourly cost

One sandbox running for one hour

Azure Container Apps Sandboxes
Shardflux
1 vCPU · 2 GiB
Azure Container Apps Sandboxes: $0.108
Shardflux: $0.070
2 vCPU · 4 GiB
Azure Container Apps Sandboxes: $0.216
Shardflux: $0.140
4 vCPU · 8 GiB
Azure Container Apps Sandboxes: $0.432
Shardflux: $0.280

Compute only, at list rates.

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Which one fits

Based on the fields above

Shardflux fits when

  • You need GPUs.
  • You use MCP.
  • You want the lower list price: $0.140 against $0.216 an hour for 2 vCPU and 4 GiB.
  • You need a desktop in the sandbox.

More comparisons

See all comparisons

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