Bunny Sandbox vs Freestyle VMs

Bunny Sandbox costs $0.02 per vCPU-hour and Freestyle VMs costs $0.04032 per vCPU-hour. Bunny Sandbox runs gVisor. Freestyle VMs runs full VMs.

Updated Oct 14, 2026

Bunny Sandbox

Isolated cloud sandboxes for AI agents, run on gVisor.

Isolation: gVisor
Free tier: Not listed
Max session: Not listed

Visit site Bunny Sandbox profile

Freestyle VMs

Full Linux virtual machines for AI agents.

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

Visit site Freestyle VMs profile

What is different

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

Field

Bunny Sandbox

Freestyle VMs

vCPU, per hour: Bunny Sandbox: $0.02; Freestyle VMs: $0.04032
RAM, per GiB-hour: Bunny Sandbox: $0.005; Freestyle VMs: $0.0129
Storage: Bunny Sandbox: $0.10 per GB per month on the allocated 10 GB; Freestyle VMs: $0.000086 per GiB-hour
Billing: Bunny Sandbox: Active CPU time only; Freestyle VMs: Per second
Isolation: Bunny Sandbox: gVisor; Freestyle VMs: Full VM
SDKs: Bunny Sandbox: JavaScript / TypeScript; Freestyle VMs: JavaScript
Integrations: Bunny Sandbox: Claude Code; Freestyle VMs: OpenAI Agents SDK, Claude Agent SDK, Claude Code

Full comparison

18 fields, at each provider's list price

Bunny Sandboxbunny.net/blog/introducing-bunny-sandbox-a-disposable-room-where-ai-can-buildbunny.net

Freestyle VMsfreestyle.sh/pricingfreestyle.sh

Pricing

vCPU, per hour: Bunny Sandbox: $0.02; Freestyle VMs: $0.04032
RAM, per GiB-hour: Bunny Sandbox: $0.005; Freestyle VMs: $0.0129
Storage: Bunny Sandbox: $0.10 per GB per month on the allocated 10 GB; Freestyle VMs: $0.000086 per GiB-hour
Free tier: Bunny Sandbox: Not listed; Freestyle VMs: Free plan, $0 forever
Paid plan from: Bunny Sandbox: Not listed; Freestyle VMs: $50 / month
Billing: Bunny Sandbox: Active CPU time only; Freestyle VMs: Per second

Limits

Max session: Bunny Sandbox: Not listed; Freestyle VMs: Not listed
Idle stop: Bunny Sandbox: Not listed; Freestyle VMs: Not listed
Largest sandbox: Bunny Sandbox: Not listed; Freestyle VMs: 32 vCPU · 64 GiB
Concurrent sandboxes: Bunny Sandbox: Not listed; Freestyle VMs: Up to 400

Platform

Isolation: Bunny Sandbox: gVisor; Freestyle VMs: Full VM
GPU: Bunny Sandbox: Not listed; Freestyle VMs: Not listed
Snapshots: Bunny Sandbox: Not listed; Freestyle VMs:
Pause and resume: Bunny Sandbox: Not listed; Freestyle VMs:

Developer

SDKs: Bunny Sandbox: JavaScript / TypeScript; Freestyle VMs: JavaScript
Integrations: Bunny Sandbox: Claude Code; Freestyle VMs: OpenAI Agents SDK, Claude Agent SDK, Claude Code

Trust

License: Bunny Sandbox: Not listed; Freestyle VMs: Not listed
BYOC: Bunny Sandbox: Not listed; Freestyle VMs: Not listed

Hourly cost

One sandbox running for one hour

Size

Bunny Sandbox

Freestyle VMs

1 vCPU · 2 GiB: Bunny Sandbox: $0.030; Freestyle VMs: $0.066
2 vCPU · 4 GiB: Bunny Sandbox: $0.060; Freestyle VMs: $0.132
4 vCPU · 8 GiB: Bunny Sandbox: $0.120; Freestyle VMs: $0.264

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Bunny Sandbox fits when

You want the lower list price: $0.060 against $0.132 an hour for 2 vCPU and 4 GiB.
Your code waits a lot: CPU is billed only while it is in use.

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

Bunny Sandbox

Freestyle VMs

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Bunny Sandbox fits when

Freestyle VMs fits when

More comparisons

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