boxd vs Modal

boxd costs $0.047 per vCPU-hour and Modal costs $0.070956 per vCPU-hour. boxd runs microVMs. Modal runs gVisor, offers GPUs and limits a session to 24 hours.

Updated

boxd

Isolation
MicroVM
Free tier
$30 credit with a payment method
Max session
Not listed

Modal

Isolation
gVisor
Free tier
$30 credit every month
Max session
24 hours

What is different

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

boxd
Modal
vCPU, per hour
boxd: $0.047
Modal: $0.070956
RAM, per GiB-hour
boxd: $0.014
Modal: $0.024012
Free tier
boxd: $30 credit with a payment method
Modal: $30 credit every month
Isolation
boxd: MicroVM
Modal: gVisor
SDKs
boxd: TypeScript, Python
Modal: Python, JavaScript / TypeScript, Go
Integrations
boxd: Claude Code
Modal: Claude Agent SDK, Claude Code

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
boxd: $0.047
Modal: $0.070956
RAM, per GiB-hour
boxd: $0.014
Modal: $0.024012
Storage
boxd: $0.000096 per GiB-hour
Modal: Not listed
Free tier
boxd: $30 credit with a payment method
Modal: $30 credit every month
Paid plan from
boxd: Pay as you go
Modal: Pay as you go
Billing
boxd: Per second
Modal: Per second

Limits

Max session
boxd: Not listed
Modal: 24 hours
Idle stop
boxd: Not listed
Modal: Not listed
Largest sandbox
boxd: Not listed
Modal: Not listed
Concurrent sandboxes
boxd: Not listed
Modal: Not listed

Platform

Isolation
boxd: MicroVM
Modal: gVisor
GPU
boxd: Not listed
Modal:
Snapshots
boxd:
Modal:
Pause and resume
boxd:
Modal: Not listed

Developer

SDKs
boxd: TypeScript, Python
Modal: Python, JavaScript / TypeScript, Go
Integrations
boxd: Claude Code
Modal: Claude Agent SDK, Claude Code

Trust

License
boxd: Not listed
Modal: Not listed
BYOC
boxd: Custom plan
Modal: Not listed

Hourly cost

One sandbox running for one hour

boxd
Modal
1 vCPU · 2 GiB
boxd: $0.075
Modal: $0.119
2 vCPU · 4 GiB
boxd: $0.150
Modal: $0.238
4 vCPU · 8 GiB
boxd: $0.300
Modal: $0.476

Compute only, at list rates.

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Which one fits

Based on the fields above

boxd fits when

  • You want each sandbox in its own microVM.
  • You want the lower list price: $0.150 against $0.238 an hour for 2 vCPU and 4 GiB.
  • You need pause and resume.
  • You need the sandboxes in your own cloud account.

Modal fits when

  • You need GPUs.
  • You use the Claude Agent SDK.
  • You need SOC 2 Type II, HIPAA and GDPR.

More comparisons

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