Azure Container Apps dynamic sessions vs Shellbox

Shellbox costs $0.01 per vCPU-hour. Azure Container Apps dynamic sessions runs full VMs. Shellbox runs Firecracker microVMs and has no session limit.

Updated

Azure Container Apps dynamic sessions

Isolation
Full VM
Free tier
Not listed
Max session
Not listed

Shellbox

Isolation
Firecracker microVM
Free tier
Not listed
Max session
No limit

What is different

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

Azure Container Apps dynamic sessions
Shellbox
Concurrent sandboxes
Azure Container Apps dynamic sessions: Up to 600
Shellbox: Up to 16
Isolation
Azure Container Apps dynamic sessions: Full VM
Shellbox: Firecracker microVM
Integrations
Azure Container Apps dynamic sessions: LangChain
Shellbox: Claude Code

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Azure Container Apps dynamic sessions: Not listed
Shellbox: $0.01
RAM, per GiB-hour
Azure Container Apps dynamic sessions: Not listed
Shellbox: Included
Storage
Azure Container Apps dynamic sessions: Not listed
Shellbox: A stopped box costs $0.50 per x1 slot per month
Free tier
Azure Container Apps dynamic sessions: Not listed
Shellbox: Not listed
Paid plan from
Azure Container Apps dynamic sessions: Not listed
Shellbox: Pay as you go
Billing
Azure Container Apps dynamic sessions: Not listed
Shellbox: Bundled machine time

Limits

Max session
Azure Container Apps dynamic sessions: Not listed
Shellbox: No limit
Idle stop
Azure Container Apps dynamic sessions: Not listed
Shellbox: After 2 minutes
Largest sandbox
Azure Container Apps dynamic sessions: Not listed
Shellbox: 16 vCPU · 32 GiB
Concurrent sandboxes
Azure Container Apps dynamic sessions: Up to 600
Shellbox: Up to 16

Platform

Isolation
Azure Container Apps dynamic sessions: Full VM
Shellbox: Firecracker microVM
GPU
Azure Container Apps dynamic sessions: Not listed
Shellbox: Not listed
Snapshots
Azure Container Apps dynamic sessions: Not listed
Shellbox:
Pause and resume
Azure Container Apps dynamic sessions: Not listed
Shellbox:

Developer

SDKs
Azure Container Apps dynamic sessions: Not listed
Shellbox: Not listed
Integrations
Azure Container Apps dynamic sessions: LangChain
Shellbox: Claude Code

Trust

License
Azure Container Apps dynamic sessions: Not listed
Shellbox: Not listed
BYOC
Azure Container Apps dynamic sessions: Not listed
Shellbox: Not listed

Hourly cost

One sandbox running for one hour

Azure Container Apps dynamic sessions
Shellbox
1 vCPU · 2 GiB
Azure Container Apps dynamic sessions: Not listed
Shellbox: $0.010
2 vCPU · 4 GiB
Azure Container Apps dynamic sessions: Not listed
Shellbox: $0.020
4 vCPU · 8 GiB
Azure Container Apps dynamic sessions: Not listed
Shellbox: $0.040

Compute only, at list rates.

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Which one fits

Based on the fields above

Azure Container Apps dynamic sessions fits when

  • You want each sandbox to be a full VM.
  • You use LangChain.

Shellbox fits when

  • You want each sandbox in its own microVM.
  • You use Claude Code.
  • You need snapshots.
  • You need pause and resume.

More comparisons

See all comparisons

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