Microsoft Foundry hosted agents vs Sandbox as a Service
Microsoft Foundry hosted agents costs $0.0994 per vCPU-hour and Sandbox as a Service costs $0.045 per vCPU-hour. Microsoft Foundry hosted agents runs microVMs. Sandbox as a Service runs full VMs and limits a session to 24 hours.
Updated
Microsoft Foundry hosted agents
- Isolation
- MicroVM
- Free tier
- Not listed
- Max session
- Not listed
Sandbox as a Service
- Isolation
- Full VM
- Free tier
- $5 credit
- Max session
- 24 hours
What is different
7 fields differ. The rest are the same or not listed.
Microsoft Foundry hosted agents
Sandbox as a Service
- vCPU, per hour
- Microsoft Foundry hosted agents: $0.0994
- Sandbox as a Service: $0.045
- RAM, per GiB-hour
- Microsoft Foundry hosted agents: $0.0118
- Sandbox as a Service: Included
- Billing
- Microsoft Foundry hosted agents: Per second
- Sandbox as a Service: Bundled machine time
- Largest sandbox
- Microsoft Foundry hosted agents: 2 vCPU · 4 GiB
- Sandbox as a Service: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Microsoft Foundry hosted agents: Up to 2,000
- Sandbox as a Service: Up to 20
- Isolation
- Microsoft Foundry hosted agents: MicroVM
- Sandbox as a Service: Full VM
- Integrations
- Microsoft Foundry hosted agents: Claude Agent SDK, LangChain, MCP, OpenAI Agents SDK
- Sandbox as a Service: MCP
Full comparison
18 fields, at each provider's list price
Microsoft Foundry hosted agentsazure
Sandbox as a Servicesandbox-as-a-service
Pricing
- vCPU, per hour
- Microsoft Foundry hosted agents: $0.0994
- Sandbox as a Service: $0.045
- RAM, per GiB-hour
- Microsoft Foundry hosted agents: $0.0118
- Sandbox as a Service: Included
- Storage
- Microsoft Foundry hosted agents: Not listed
- Sandbox as a Service: Not listed
- Free tier
- Microsoft Foundry hosted agents: Not listed
- Sandbox as a Service: $5 credit
- Paid plan from
- Microsoft Foundry hosted agents: Pay as you go
- Sandbox as a Service: Pay as you go
- Billing
- Microsoft Foundry hosted agents: Per second
- Sandbox as a Service: Bundled machine time
Limits
- Max session
- Microsoft Foundry hosted agents: Not listed
- Sandbox as a Service: 24 hours
- Idle stop
- Microsoft Foundry hosted agents: After 15 minutes
- Sandbox as a Service: Not listed
- Largest sandbox
- Microsoft Foundry hosted agents: 2 vCPU · 4 GiB
- Sandbox as a Service: 8 vCPU · 16 GiB
- Concurrent sandboxes
- Microsoft Foundry hosted agents: Up to 2,000
- Sandbox as a Service: Up to 20
Platform
- Isolation
- Microsoft Foundry hosted agents: MicroVM
- Sandbox as a Service: Full VM
- GPU
- Microsoft Foundry hosted agents: Not listed
- Sandbox as a Service: Not listed
- Snapshots
- Microsoft Foundry hosted agents: Not listed
- Sandbox as a Service:
- Pause and resume
- Microsoft Foundry hosted agents:
- Sandbox as a Service: Not listed
Developer
- SDKs
- Microsoft Foundry hosted agents: Python, JavaScript / TypeScript
- Sandbox as a Service: Python, JavaScript / TypeScript
- Integrations
- Microsoft Foundry hosted agents: Claude Agent SDK, LangChain, MCP, OpenAI Agents SDK
- Sandbox as a Service: MCP
Trust
- License
- Microsoft Foundry hosted agents: Not listed
- Sandbox as a Service: Not listed
- BYOC
- Microsoft Foundry hosted agents: Not listed
- Sandbox as a Service: Not listed
Hourly cost
One sandbox running for one hour
Microsoft Foundry hosted agents
Sandbox as a Service
- 1 vCPU · 2 GiB
- Microsoft Foundry hosted agents: $0.123
- Sandbox as a Service: $0.045
- 2 vCPU · 4 GiB
- Microsoft Foundry hosted agents: $0.246
- Sandbox as a Service: $0.090
- 4 vCPU · 8 GiB
- Microsoft Foundry hosted agents: $0.492
- Sandbox as a Service: $0.180
Compute only, at list rates.
Open the calculatorWhich one fits
Based on the fields above
Microsoft Foundry hosted agents fits when
- You want each sandbox in its own microVM.
- You use the Claude Agent SDK, LangChain or the OpenAI Agents SDK.
- You need pause and resume.
Sandbox as a Service fits when
- You want each sandbox to be a full VM.
- You want the lower list price: $0.090 against $0.246 an hour for 2 vCPU and 4 GiB.
- You need snapshots.
- You need a sandbox larger than 2 vCPU · 4 GiB.
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