Celesto Cloud vs DigitalOcean Harness Runtime

Celesto Cloud costs $0.015 per vCPU-hour and DigitalOcean Harness Runtime costs $0.044 per vCPU-hour. Celesto Cloud runs microVMs. DigitalOcean Harness Runtime runs Firecracker microVMs.

Updated Oct 14, 2026

Celesto Cloud

Cloud computers for AI agents, each in a microVM.

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

Visit site Celesto Cloud profile

DigitalOcean Harness Runtime

Managed microVM sandboxes for AI agents and their code.

Isolation: Firecracker microVM
Free tier: Not listed
Max session: Not listed

Visit site DigitalOcean Harness Runtime profile

What is different

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

Field

Celesto Cloud

DigitalOcean Harness Runtime

vCPU, per hour: Celesto Cloud: $0.015; DigitalOcean Harness Runtime: $0.044
RAM, per GiB-hour: Celesto Cloud: Included; DigitalOcean Harness Runtime: $0.0095
Storage: Celesto Cloud: Free; DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month
Billing: Celesto Cloud: Bundled machine time; DigitalOcean Harness Runtime: Active CPU time only
Largest sandbox: Celesto Cloud: 8 vCPU · 32 GiB; DigitalOcean Harness Runtime: 16 vCPU · 32 GiB
Concurrent sandboxes: Celesto Cloud: Up to 10; DigitalOcean Harness Runtime: Up to 100
Isolation: Celesto Cloud: MicroVM; DigitalOcean Harness Runtime: Firecracker microVM
SDKs: Celesto Cloud: Python, JavaScript / TypeScript; DigitalOcean Harness Runtime: Python

Full comparison

18 fields, at each provider's list price

Celesto Cloudcelesto.ai/pricing

DigitalOcean Harness Runtimedigitalocean.com/pricing/harness-runtimedigitalocean.com

Pricing

vCPU, per hour: Celesto Cloud: $0.015; DigitalOcean Harness Runtime: $0.044
RAM, per GiB-hour: Celesto Cloud: Included; DigitalOcean Harness Runtime: $0.0095
Storage: Celesto Cloud: Free; DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month
Free tier: Celesto Cloud: $5 runtime credit, one time, 30 days; DigitalOcean Harness Runtime: Not listed
Paid plan from: Celesto Cloud: Pay as you go; DigitalOcean Harness Runtime: Pay as you go
Billing: Celesto Cloud: Bundled machine time; DigitalOcean Harness Runtime: Active CPU time only

Limits

Max session: Celesto Cloud: Not listed; DigitalOcean Harness Runtime: Not listed
Idle stop: Celesto Cloud: Not listed; DigitalOcean Harness Runtime: After 15 minutes
Largest sandbox: Celesto Cloud: 8 vCPU · 32 GiB; DigitalOcean Harness Runtime: 16 vCPU · 32 GiB
Concurrent sandboxes: Celesto Cloud: Up to 10; DigitalOcean Harness Runtime: Up to 100

Platform

Isolation: Celesto Cloud: MicroVM; DigitalOcean Harness Runtime: Firecracker microVM
GPU: Celesto Cloud: Not listed; DigitalOcean Harness Runtime: Not listed
Snapshots: Celesto Cloud:; DigitalOcean Harness Runtime:
Pause and resume: Celesto Cloud:; DigitalOcean Harness Runtime:

Developer

SDKs: Celesto Cloud: Python, JavaScript / TypeScript; DigitalOcean Harness Runtime: Python
Integrations: Celesto Cloud: MCP, OpenAI Agents SDK; DigitalOcean Harness Runtime: Not listed

Trust

License: Celesto Cloud: Apache-2.0; DigitalOcean Harness Runtime: Not listed
BYOC: Celesto Cloud: Not listed; DigitalOcean Harness Runtime: Not listed

Hourly cost

One sandbox running for one hour

Size

Celesto Cloud

DigitalOcean Harness Runtime

1 vCPU · 2 GiB: Celesto Cloud: $0.015; DigitalOcean Harness Runtime: $0.063
2 vCPU · 4 GiB: Celesto Cloud: $0.030; DigitalOcean Harness Runtime: $0.126
4 vCPU · 8 GiB: Celesto Cloud: $0.060; DigitalOcean Harness Runtime: $0.252

Compute only, at list rates.

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Which one fits

Based on the fields above

Celesto Cloud fits when

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 $0.126 an hour for 2 vCPU and 4 GiB.
You need a desktop in the sandbox.

DigitalOcean Harness Runtime fits when

Your code waits a lot: CPU is billed only while it is in use.
You need a sandbox larger than 8 vCPU · 32 GiB.

More comparisons

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Celesto Cloud

DigitalOcean Harness Runtime

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Celesto Cloud fits when

DigitalOcean Harness Runtime fits when

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