Deno Sandbox vs Mosaic Sandbox

Deno Sandbox costs $0.10 per vCPU-hour and Mosaic Sandbox costs $0.025 per vCPU-hour. Deno Sandbox runs Firecracker microVMs and limits a session to 30 minutes. Mosaic Sandbox runs Firecracker microVMs.

Updated

Deno Sandbox

Isolation
Firecracker microVM
Free tier
Not listed
Max session
30 minutes

Mosaic Sandbox

Isolation
Firecracker microVM
Free tier
Not listed
Max session
Not listed

What is different

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

Deno Sandbox
Mosaic Sandbox
vCPU, per hour
Deno Sandbox: $0.10
Mosaic Sandbox: $0.025
RAM, per GiB-hour
Deno Sandbox: $0.025
Mosaic Sandbox: Included
Storage
Deno Sandbox: Volumes $0.20 per GiB-month after plan allowance. Volumes 300 MB to 20 GB.
Mosaic Sandbox: Free
Paid plan from
Deno Sandbox: $20 / month
Mosaic Sandbox: Pay as you go
Billing
Deno Sandbox: Active CPU time only
Mosaic Sandbox: Bundled machine time
Largest sandbox
Deno Sandbox: 2 vCPU · 4 GiB
Mosaic Sandbox: 16 vCPU · 32 GiB
Concurrent sandboxes
Deno Sandbox: Up to 20
Mosaic Sandbox: Up to 200
SDKs
Deno Sandbox: JavaScript / TypeScript, Python
Mosaic Sandbox: Python, TypeScript, Go

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Deno Sandbox: $0.10
Mosaic Sandbox: $0.025
RAM, per GiB-hour
Deno Sandbox: $0.025
Mosaic Sandbox: Included
Storage
Deno Sandbox: Volumes $0.20 per GiB-month after plan allowance. Volumes 300 MB to 20 GB.
Mosaic Sandbox: Free
Free tier
Deno Sandbox: Not listed
Mosaic Sandbox: Not listed
Paid plan from
Deno Sandbox: $20 / month
Mosaic Sandbox: Pay as you go
Billing
Deno Sandbox: Active CPU time only
Mosaic Sandbox: Bundled machine time

Limits

Max session
Deno Sandbox: 30 minutes
Mosaic Sandbox: Not listed
Idle stop
Deno Sandbox: Not listed
Mosaic Sandbox: Not listed
Largest sandbox
Deno Sandbox: 2 vCPU · 4 GiB
Mosaic Sandbox: 16 vCPU · 32 GiB
Concurrent sandboxes
Deno Sandbox: Up to 20
Mosaic Sandbox: Up to 200

Platform

Isolation
Deno Sandbox: Firecracker microVM
Mosaic Sandbox: Firecracker microVM
GPU
Deno Sandbox: Not listed
Mosaic Sandbox: Not listed
Snapshots
Deno Sandbox:
Mosaic Sandbox:
Pause and resume
Deno Sandbox: Not listed
Mosaic Sandbox:

Developer

SDKs
Deno Sandbox: JavaScript / TypeScript, Python
Mosaic Sandbox: Python, TypeScript, Go
Integrations
Deno Sandbox: Not listed
Mosaic Sandbox: LangChain, MCP

Trust

License
Deno Sandbox: Not listed
Mosaic Sandbox: Not listed
BYOC
Deno Sandbox: Not listed
Mosaic Sandbox: Not listed

Hourly cost

One sandbox running for one hour

Deno Sandbox
Mosaic Sandbox
1 vCPU · 2 GiB
Deno Sandbox: $0.150
Mosaic Sandbox: $0.025
2 vCPU · 4 GiB
Deno Sandbox: $0.300
Mosaic Sandbox: $0.050
4 vCPU · 8 GiB
Deno Sandbox: $0.600
Mosaic Sandbox: $0.100

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

Deno Sandbox fits when

  • Your code waits a lot: CPU is billed only while it is in use.
  • You need SOC 2, ISO 27001 and HIPAA.

Mosaic Sandbox fits when

  • You want to pay only for usage, with no plan fee.
  • You use LangChain or MCP.
  • You want the lower list price: $0.050 against $0.300 an hour for 2 vCPU and 4 GiB.
  • You need pause and resume.

More comparisons

See all comparisons

Related