Mosaic Sandbox vs Zipbox

Mosaic Sandbox costs $0.025 per vCPU-hour and Zipbox costs $0.00685 per vCPU-hour. Mosaic Sandbox runs Firecracker microVMs. Zipbox runs Firecracker microVMs and has no session limit.

Updated

Mosaic Sandbox

Isolation
Firecracker microVM
Free tier
Not listed
Max session
Not listed

Zipbox

Isolation
Firecracker microVM
Free tier
$25 credit after a one-time $5 top-up
Max session
No limit

What is different

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

Mosaic Sandbox
Zipbox
vCPU, per hour
Mosaic Sandbox: $0.025
Zipbox: $0.00685
Largest sandbox
Mosaic Sandbox: 16 vCPU · 32 GiB
Zipbox: 6 vCPU · 16 GiB
Snapshots
Mosaic Sandbox:
Zipbox: No
Pause and resume
Mosaic Sandbox:
Zipbox: No
SDKs
Mosaic Sandbox: Python, TypeScript, Go
Zipbox: TypeScript, Python, Go, Rust
Integrations
Mosaic Sandbox: LangChain, MCP, Claude Code, Vercel AI SDK
Zipbox: MCP, Claude Code, Claude Agent SDK, OpenAI Agents SDK, Vercel AI SDK, LangChain

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Mosaic Sandbox: $0.025
Zipbox: $0.00685
RAM, per GiB-hour
Mosaic Sandbox: Included
Zipbox: Included
Storage
Mosaic Sandbox: Free
Zipbox: Free
Free tier
Mosaic Sandbox: Not listed
Zipbox: $25 credit after a one-time $5 top-up
Paid plan from
Mosaic Sandbox: Pay as you go
Zipbox: Pay as you go
Billing
Mosaic Sandbox: Bundled machine time
Zipbox: Bundled machine time

Limits

Max session
Mosaic Sandbox: Not listed
Zipbox: No limit
Idle stop
Mosaic Sandbox: Not listed
Zipbox: Not listed
Largest sandbox
Mosaic Sandbox: 16 vCPU · 32 GiB
Zipbox: 6 vCPU · 16 GiB
Concurrent sandboxes
Mosaic Sandbox: Up to 200
Zipbox: Not listed

Platform

Isolation
Mosaic Sandbox: Firecracker microVM
Zipbox: Firecracker microVM
GPU
Mosaic Sandbox: No
Zipbox: Not listed
Snapshots
Mosaic Sandbox:
Zipbox: No
Pause and resume
Mosaic Sandbox:
Zipbox: No

Developer

SDKs
Mosaic Sandbox: Python, TypeScript, Go
Zipbox: TypeScript, Python, Go, Rust
Integrations
Mosaic Sandbox: LangChain, MCP, Claude Code, Vercel AI SDK
Zipbox: MCP, Claude Code, Claude Agent SDK, OpenAI Agents SDK, Vercel AI SDK, LangChain

Trust

License
Mosaic Sandbox: Not listed
Zipbox: Not listed
BYOC
Mosaic Sandbox: Not listed
Zipbox: Not listed

Hourly cost

One sandbox running for one hour

Mosaic Sandbox
Zipbox
1 vCPU · 2 GiB
Mosaic Sandbox: $0.025
Zipbox: $0.007
2 vCPU · 4 GiB
Mosaic Sandbox: $0.050
Zipbox: $0.014
4 vCPU · 8 GiB
Mosaic Sandbox: $0.100
Zipbox: $0.027

Compute only, at list rates.

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Which one fits

Based on the fields above

Mosaic Sandbox fits when

  • You need snapshots.
  • You need pause and resume.
  • You need a sandbox larger than 6 vCPU · 16 GiB.

Zipbox fits when

  • You use the Claude Agent SDK or the OpenAI Agents SDK.
  • You want the lower list price: $0.014 against $0.050 an hour for 2 vCPU and 4 GiB.
  • You need a desktop in the sandbox.

More comparisons

See all comparisons

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