DigitalOcean Harness Runtime vs Shardflux

DigitalOcean Harness Runtime costs $0.044 per vCPU-hour and Shardflux costs $0.04 per vCPU-hour. DigitalOcean Harness Runtime runs Firecracker microVMs. Shardflux runs Firecracker microVMs and offers GPUs.

Updated

DigitalOcean Harness Runtime

Isolation
Firecracker microVM
Free tier
Not listed
Max session
Not listed

Shardflux

Isolation
Firecracker microVM
Free tier
30-day Pro trial, no card needed
Max session
Not listed

What is different

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

DigitalOcean Harness Runtime
Shardflux
vCPU, per hour
DigitalOcean Harness Runtime: $0.044
Shardflux: $0.04
RAM, per GiB-hour
DigitalOcean Harness Runtime: $0.0095
Shardflux: $0.015
Storage
DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month
Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Paid plan from
DigitalOcean Harness Runtime: Pay as you go
Shardflux: $9 / month
Largest sandbox
DigitalOcean Harness Runtime: 16 vCPU · 32 GiB
Shardflux: 32 vCPU · 64 GiB
Concurrent sandboxes
DigitalOcean Harness Runtime: Up to 100
Shardflux: Up to 200
SDKs
DigitalOcean Harness Runtime: Python
Shardflux: TypeScript, Python
Integrations
DigitalOcean Harness Runtime: Claude Code
Shardflux: Claude Code, MCP

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
DigitalOcean Harness Runtime: $0.044
Shardflux: $0.04
RAM, per GiB-hour
DigitalOcean Harness Runtime: $0.0095
Shardflux: $0.015
Storage
DigitalOcean Harness Runtime: Session volumes $0.05 per GiB-month
Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier
DigitalOcean Harness Runtime: Not listed
Shardflux: 30-day Pro trial, no card needed
Paid plan from
DigitalOcean Harness Runtime: Pay as you go
Shardflux: $9 / month
Billing
DigitalOcean Harness Runtime: Active CPU time only
Shardflux: Active CPU time only

Limits

Max session
DigitalOcean Harness Runtime: Not listed
Shardflux: Not listed
Idle stop
DigitalOcean Harness Runtime: After 15 minutes
Shardflux: Not listed
Largest sandbox
DigitalOcean Harness Runtime: 16 vCPU · 32 GiB
Shardflux: 32 vCPU · 64 GiB
Concurrent sandboxes
DigitalOcean Harness Runtime: Up to 100
Shardflux: Up to 200

Platform

Isolation
DigitalOcean Harness Runtime: Firecracker microVM
Shardflux: Firecracker microVM
GPU
DigitalOcean Harness Runtime: Not listed
Shardflux:
Snapshots
DigitalOcean Harness Runtime:
Shardflux:
Pause and resume
DigitalOcean Harness Runtime:
Shardflux:

Developer

SDKs
DigitalOcean Harness Runtime: Python
Shardflux: TypeScript, Python
Integrations
DigitalOcean Harness Runtime: Claude Code
Shardflux: Claude Code, MCP

Trust

License
DigitalOcean Harness Runtime: Not listed
Shardflux: Not listed
BYOC
DigitalOcean Harness Runtime: Not listed
Shardflux: Not listed

Hourly cost

One sandbox running for one hour

DigitalOcean Harness Runtime
Shardflux
1 vCPU · 2 GiB
DigitalOcean Harness Runtime: $0.063
Shardflux: $0.070
2 vCPU · 4 GiB
DigitalOcean Harness Runtime: $0.126
Shardflux: $0.140
4 vCPU · 8 GiB
DigitalOcean Harness Runtime: $0.252
Shardflux: $0.280

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 the lower list price: $0.126 against $0.140 an hour for 2 vCPU and 4 GiB.

Shardflux fits when

  • You need GPUs.
  • You use MCP.
  • You need a desktop in the sandbox.
  • You need a sandbox larger than 16 vCPU · 32 GiB.

More comparisons

See all comparisons

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