Celesto Cloud vs Deno Sandbox

Celesto Cloud costs $0.015 per vCPU-hour and Deno Sandbox costs $0.10 per vCPU-hour. Celesto Cloud runs microVMs. Deno Sandbox runs Firecracker microVMs and limits a session to 30 minutes.

Updated

Celesto Cloud

Isolation
MicroVM
Free tier
$5 runtime credit, one time, 30 days
Max session
Not listed

Deno Sandbox

Isolation
Firecracker microVM
Free tier
Not listed
Max session
30 minutes

What is different

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

Celesto Cloud
Deno Sandbox
vCPU, per hour
Celesto Cloud: $0.015
Deno Sandbox: $0.10
RAM, per GiB-hour
Celesto Cloud: Included
Deno Sandbox: $0.025
Storage
Celesto Cloud: Free
Deno Sandbox: Volumes $0.20 per GiB-month after plan allowance. Volumes 300 MB to 20 GB.
Paid plan from
Celesto Cloud: Pay as you go
Deno Sandbox: $20 / month
Billing
Celesto Cloud: Bundled machine time
Deno Sandbox: Active CPU time only
Largest sandbox
Celesto Cloud: 8 vCPU · 32 GiB
Deno Sandbox: 2 vCPU · 4 GiB
Concurrent sandboxes
Celesto Cloud: Up to 10
Deno Sandbox: Up to 20
Isolation
Celesto Cloud: MicroVM
Deno Sandbox: Firecracker microVM
SDKs
Celesto Cloud: Python, JavaScript / TypeScript
Deno Sandbox: JavaScript / TypeScript, Python

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
Celesto Cloud: $0.015
Deno Sandbox: $0.10
RAM, per GiB-hour
Celesto Cloud: Included
Deno Sandbox: $0.025
Storage
Celesto Cloud: Free
Deno Sandbox: Volumes $0.20 per GiB-month after plan allowance. Volumes 300 MB to 20 GB.
Free tier
Celesto Cloud: $5 runtime credit, one time, 30 days
Deno Sandbox: Not listed
Paid plan from
Celesto Cloud: Pay as you go
Deno Sandbox: $20 / month
Billing
Celesto Cloud: Bundled machine time
Deno Sandbox: Active CPU time only

Limits

Max session
Celesto Cloud: Not listed
Deno Sandbox: 30 minutes
Idle stop
Celesto Cloud: Not listed
Deno Sandbox: Not listed
Largest sandbox
Celesto Cloud: 8 vCPU · 32 GiB
Deno Sandbox: 2 vCPU · 4 GiB
Concurrent sandboxes
Celesto Cloud: Up to 10
Deno Sandbox: Up to 20

Platform

Isolation
Celesto Cloud: MicroVM
Deno Sandbox: Firecracker microVM
GPU
Celesto Cloud: Not listed
Deno Sandbox: Not listed
Snapshots
Celesto Cloud:
Deno Sandbox:
Pause and resume
Celesto Cloud:
Deno Sandbox: Not listed

Developer

SDKs
Celesto Cloud: Python, JavaScript / TypeScript
Deno Sandbox: JavaScript / TypeScript, Python
Integrations
Celesto Cloud: MCP, OpenAI Agents SDK
Deno Sandbox: Not listed

Trust

License
Celesto Cloud: Apache-2.0
Deno Sandbox: Not listed
BYOC
Celesto Cloud: Not listed
Deno Sandbox: Not listed

Hourly cost

One sandbox running for one hour

Celesto Cloud
Deno Sandbox
1 vCPU · 2 GiB
Celesto Cloud: $0.015
Deno Sandbox: $0.150
2 vCPU · 4 GiB
Celesto Cloud: $0.030
Deno Sandbox: $0.300
4 vCPU · 8 GiB
Celesto Cloud: $0.060
Deno Sandbox: $0.600

Compute only, at list rates.

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Which one fits

Based on the fields above

Celesto Cloud fits when

  • You want to pay only for usage, with no plan fee.
  • You want an open-source platform (Apache-2.0).
  • You use MCP or the OpenAI Agents SDK.
  • You want the lower list price: $0.030 against $0.300 an hour for 2 vCPU and 4 GiB.

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.

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