Brimble Sandboxes vs DigitalOcean Harness Runtime

DigitalOcean Harness Runtime costs $0.044 per vCPU-hour. Brimble Sandboxes runs gVisor and limits a session to 6 hours. DigitalOcean Harness Runtime runs Firecracker microVMs.

Updated Oct 23, 2026

Brimble Sandboxes

Sandbox product of the Brimble hosting platform that runs code in gVisor containers.

Isolation: gVisor
Free tier: 7-day Developer plan trial, card required
Max session: 6 hours

Visit site Brimble Sandboxes profile

DigitalOcean Harness Runtime

Managed microVM sandboxes for AI agents and their code.

Isolation: Firecracker microVM
Free tier: $5 credit for new DigitalOcean customers
Max session: Not listed

Visit site DigitalOcean Harness Runtime profile

What is different

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

Field

Brimble Sandboxes

DigitalOcean Harness Runtime

Storage: Brimble Sandboxes: Snapshot storage and persistent volumes bill at storage rates; DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month
Free tier: Brimble Sandboxes: 7-day Developer plan trial, card required; DigitalOcean Harness Runtime: $5 credit for new DigitalOcean customers
Paid plan from: Brimble Sandboxes: $3 / month; DigitalOcean Harness Runtime: Pay as you go
Billing: Brimble Sandboxes: Per second; DigitalOcean Harness Runtime: Active CPU time only
Largest sandbox: Brimble Sandboxes: 4 vCPU · 8 GiB; DigitalOcean Harness Runtime: 16 vCPU · 32 GiB
Concurrent sandboxes: Brimble Sandboxes: Up to 15; DigitalOcean Harness Runtime: Up to 100
Isolation: Brimble Sandboxes: gVisor; DigitalOcean Harness Runtime: Firecracker microVM
SDKs: Brimble Sandboxes: JavaScript / TypeScript, Python, Go; DigitalOcean Harness Runtime: Python
Integrations: Brimble Sandboxes: MCP, Claude Code; DigitalOcean Harness Runtime: Claude Code, MCP

Full comparison

18 fields, at each provider's list price

Brimble Sandboxesbrimble.io/pricing

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

Pricing

vCPU, per hour: Brimble Sandboxes: Not listed; DigitalOcean Harness Runtime: $0.044
RAM, per GiB-hour: Brimble Sandboxes: Not listed; DigitalOcean Harness Runtime: $0.0095
Storage: Brimble Sandboxes: Snapshot storage and persistent volumes bill at storage rates; DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month
Free tier: Brimble Sandboxes: 7-day Developer plan trial, card required; DigitalOcean Harness Runtime: $5 credit for new DigitalOcean customers
Paid plan from: Brimble Sandboxes: $3 / month; DigitalOcean Harness Runtime: Pay as you go
Billing: Brimble Sandboxes: Per second; DigitalOcean Harness Runtime: Active CPU time only

Limits

Max session: Brimble Sandboxes: 6 hours; DigitalOcean Harness Runtime: Not listed
Idle stop: Brimble Sandboxes: Not listed; DigitalOcean Harness Runtime: After 15 minutes
Largest sandbox: Brimble Sandboxes: 4 vCPU · 8 GiB; DigitalOcean Harness Runtime: 16 vCPU · 32 GiB
Concurrent sandboxes: Brimble Sandboxes: Up to 15; DigitalOcean Harness Runtime: Up to 100

Platform

Isolation: Brimble Sandboxes: gVisor; DigitalOcean Harness Runtime: Firecracker microVM
GPU: Brimble Sandboxes: Not listed; DigitalOcean Harness Runtime: Not listed
Snapshots: Brimble Sandboxes:; DigitalOcean Harness Runtime:
Pause and resume: Brimble Sandboxes:; DigitalOcean Harness Runtime:

Developer

SDKs: Brimble Sandboxes: JavaScript / TypeScript, Python, Go; DigitalOcean Harness Runtime: Python
Integrations: Brimble Sandboxes: MCP, Claude Code; DigitalOcean Harness Runtime: Claude Code, MCP

Trust

License: Brimble Sandboxes: Not listed; DigitalOcean Harness Runtime: Not listed
BYOC: Brimble Sandboxes: Not listed; DigitalOcean Harness Runtime: Not listed

Hourly cost

One sandbox running for one hour

Size

Brimble Sandboxes

DigitalOcean Harness Runtime

1 vCPU · 2 GiB: Brimble Sandboxes: Not listed; DigitalOcean Harness Runtime: $0.063
2 vCPU · 4 GiB: Brimble Sandboxes: Not listed; DigitalOcean Harness Runtime: $0.126
4 vCPU · 8 GiB: Brimble Sandboxes: Not listed; DigitalOcean Harness Runtime: $0.252

Compute only, at list rates.

Open the calculator

Which one fits

Based on the fields above

DigitalOcean Harness Runtime fits when

You want to pay only for usage, with no plan fee.
You want each sandbox in its own microVM.
Your code waits a lot: CPU is billed only while it is in use.
You need a sandbox larger than 4 vCPU · 8 GiB.

More comparisons

See all comparisons

Brimble Sandboxes

DigitalOcean Harness Runtime

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

DigitalOcean Harness Runtime fits when

More comparisons

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