Azure Container Apps dynamic sessions vs Runtime

Runtime costs $0.025 per vCPU-hour. Azure Container Apps dynamic sessions runs full VMs. Runtime 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

Runtime

Isolation
Firecracker microVM
Free tier
100 hours of a 1 GB machine in the first 30 days
Max session
No limit

What is different

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

Azure Container Apps dynamic sessions
Runtime
Concurrent sandboxes
Azure Container Apps dynamic sessions: Up to 600
Runtime: Up to 200
Isolation
Azure Container Apps dynamic sessions: Full VM
Runtime: Firecracker microVM
Integrations
Azure Container Apps dynamic sessions: LangChain
Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Azure Container Apps dynamic sessions: Not listed
Runtime: $0.025
RAM, per GiB-hour
Azure Container Apps dynamic sessions: Not listed
Runtime: $0.0075
Storage
Azure Container Apps dynamic sessions: Not listed
Runtime: $0.000119 per GiB-hour after 10 free GiB
Free tier
Azure Container Apps dynamic sessions: Not listed
Runtime: 100 hours of a 1 GB machine in the first 30 days
Paid plan from
Azure Container Apps dynamic sessions: Not listed
Runtime: Pay as you go
Billing
Azure Container Apps dynamic sessions: Not listed
Runtime: Active CPU time only

Limits

Max session
Azure Container Apps dynamic sessions: Not listed
Runtime: No limit
Idle stop
Azure Container Apps dynamic sessions: Not listed
Runtime: After 5 minutes
Largest sandbox
Azure Container Apps dynamic sessions: Not listed
Runtime: 16 vCPU · 64 GiB
Concurrent sandboxes
Azure Container Apps dynamic sessions: Up to 600
Runtime: Up to 200

Platform

Isolation
Azure Container Apps dynamic sessions: Full VM
Runtime: Firecracker microVM
GPU
Azure Container Apps dynamic sessions: Not listed
Runtime: No
Snapshots
Azure Container Apps dynamic sessions: Not listed
Runtime:
Pause and resume
Azure Container Apps dynamic sessions: Not listed
Runtime:

Developer

SDKs
Azure Container Apps dynamic sessions: Not listed
Runtime: JavaScript / TypeScript, Python, Go, Ruby, Java
Integrations
Azure Container Apps dynamic sessions: LangChain
Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Trust

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

Hourly cost

One sandbox running for one hour

Azure Container Apps dynamic sessions
Runtime
1 vCPU · 2 GiB
Azure Container Apps dynamic sessions: Not listed
Runtime: $0.040
2 vCPU · 4 GiB
Azure Container Apps dynamic sessions: Not listed
Runtime: $0.080
4 vCPU · 8 GiB
Azure Container Apps dynamic sessions: Not listed
Runtime: $0.160

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.

Runtime fits when

  • You want each sandbox in its own microVM.
  • You use the OpenAI Agents SDK, the Vercel AI SDK, the Claude Agent SDK, MCP or Claude Code.
  • You need snapshots.
  • You need pause and resume.

More comparisons

See all comparisons

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