Caged vs Freestyle VMs

Caged costs $0.06 per vCPU-hour and Freestyle VMs costs $0.04032 per vCPU-hour. Caged runs Firecracker microVMs and limits a session to 4 hours. Freestyle VMs runs full VMs.

Updated

Caged

Isolation
Firecracker microVM
Free tier
Free plan, 5 sandboxes a day
Max session
4 hours

Freestyle VMs

Isolation
Full VM
Free tier
Free plan, $0 forever
Max session
Not listed

What is different

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

Caged
Freestyle VMs
vCPU, per hour
Caged: $0.06
Freestyle VMs: $0.04032
RAM, per GiB-hour
Caged: Included
Freestyle VMs: $0.0129
Storage
Caged: Free
Freestyle VMs: $0.000086 per GiB-hour
Free tier
Caged: Free plan, 5 sandboxes a day
Freestyle VMs: Free plan, $0 forever
Paid plan from
Caged: $29 / month
Freestyle VMs: $50 / month
Billing
Caged: Bundled machine time
Freestyle VMs: Per second
Largest sandbox
Caged: 8 vCPU · 8 GiB
Freestyle VMs: 32 vCPU · 64 GiB
Concurrent sandboxes
Caged: Up to 5
Freestyle VMs: Up to 400
Isolation
Caged: Firecracker microVM
Freestyle VMs: Full VM
Integrations
Caged: MCP
Freestyle VMs: OpenAI Agents SDK, Claude Agent SDK

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Caged: $0.06
Freestyle VMs: $0.04032
RAM, per GiB-hour
Caged: Included
Freestyle VMs: $0.0129
Storage
Caged: Free
Freestyle VMs: $0.000086 per GiB-hour
Free tier
Caged: Free plan, 5 sandboxes a day
Freestyle VMs: Free plan, $0 forever
Paid plan from
Caged: $29 / month
Freestyle VMs: $50 / month
Billing
Caged: Bundled machine time
Freestyle VMs: Per second

Limits

Max session
Caged: 4 hours
Freestyle VMs: Not listed
Idle stop
Caged: Not listed
Freestyle VMs: Not listed
Largest sandbox
Caged: 8 vCPU · 8 GiB
Freestyle VMs: 32 vCPU · 64 GiB
Concurrent sandboxes
Caged: Up to 5
Freestyle VMs: Up to 400

Platform

Isolation
Caged: Firecracker microVM
Freestyle VMs: Full VM
GPU
Caged: Not listed
Freestyle VMs: Not listed
Snapshots
Caged: Not listed
Freestyle VMs:
Pause and resume
Caged: Not listed
Freestyle VMs:

Developer

SDKs
Caged: Not listed
Freestyle VMs: JavaScript
Integrations
Caged: MCP
Freestyle VMs: OpenAI Agents SDK, Claude Agent SDK

Trust

License
Caged: Not listed
Freestyle VMs: Not listed
BYOC
Caged: Not listed
Freestyle VMs: Not listed

Hourly cost

One sandbox running for one hour

Caged
Freestyle VMs
1 vCPU · 2 GiB
Caged: $0.060
Freestyle VMs: $0.066
2 vCPU · 4 GiB
Caged: $0.120
Freestyle VMs: $0.132
4 vCPU · 8 GiB
Caged: $0.240
Freestyle VMs: $0.264

Compute only, at list rates.

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Which one fits

Based on the fields above

Caged fits when

  • You want each sandbox in its own microVM.
  • You use MCP.
  • You want the lower list price: $0.120 against $0.132 an hour for 2 vCPU and 4 GiB.

Freestyle VMs fits when

  • You want each sandbox to be a full VM.
  • You use the OpenAI Agents SDK or the Claude Agent SDK.
  • You need snapshots.
  • You need pause and resume.

More comparisons

See all comparisons

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