MIOSA vs Modal

MIOSA costs $0.04536 per vCPU-hour and Modal costs $0.070956 per vCPU-hour. MIOSA runs Firecracker microVMs and limits a session to 24 hours. Modal runs gVisor, offers GPUs and limits a session to 24 hours.

Updated

MIOSA

Isolation
Firecracker microVM
Free tier
$10 credit, one time
Max session
24 hours

Modal

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

What is different

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

MIOSA
Modal
vCPU, per hour
MIOSA: $0.04536
Modal: $0.070956
RAM, per GiB-hour
MIOSA: $0.01458
Modal: $0.024012
Free tier
MIOSA: $10 credit, one time
Modal: $30 credit every month
Paid plan from
MIOSA: $500 / month
Modal: Pay as you go
Isolation
MIOSA: Firecracker microVM
Modal: gVisor
SDKs
MIOSA: TypeScript, Python, Go, Rust, Java
Modal: Python, JavaScript / TypeScript, Go
Integrations
MIOSA: MCP
Modal: Claude Agent SDK, Claude Code

Full comparison

18 fields, at each provider's list price

Pricing

vCPU, per hour
MIOSA: $0.04536
Modal: $0.070956
RAM, per GiB-hour
MIOSA: $0.01458
Modal: $0.024012
Storage
MIOSA: $0.0006147 per GiB-hour
Modal: Not listed
Free tier
MIOSA: $10 credit, one time
Modal: $30 credit every month
Paid plan from
MIOSA: $500 / month
Modal: Pay as you go
Billing
MIOSA: Per second
Modal: Per second

Limits

Max session
MIOSA: 24 hours
Modal: 24 hours
Idle stop
MIOSA: After 30 minutes
Modal: Not listed
Largest sandbox
MIOSA: 16 vCPU · 32 GiB
Modal: Not listed
Concurrent sandboxes
MIOSA: Up to 250
Modal: Not listed

Platform

Isolation
MIOSA: Firecracker microVM
Modal: gVisor
GPU
MIOSA: Not listed
Modal:
Snapshots
MIOSA:
Modal:
Pause and resume
MIOSA:
Modal: Not listed

Developer

SDKs
MIOSA: TypeScript, Python, Go, Rust, Java
Modal: Python, JavaScript / TypeScript, Go
Integrations
MIOSA: MCP
Modal: Claude Agent SDK, Claude Code

Trust

License
MIOSA: Not listed
Modal: Not listed
BYOC
MIOSA: Your own AWS, GCP or Azure account
Modal: Not listed

Hourly cost

One sandbox running for one hour

MIOSA
Modal
1 vCPU · 2 GiB
MIOSA: $0.075
Modal: $0.119
2 vCPU · 4 GiB
MIOSA: $0.149
Modal: $0.238
4 vCPU · 8 GiB
MIOSA: $0.298
Modal: $0.476

Compute only, at list rates.

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Which one fits

Based on the fields above

MIOSA fits when

  • You want each sandbox in its own microVM.
  • You use MCP.
  • You want the lower list price: $0.149 against $0.238 an hour for 2 vCPU and 4 GiB.
  • You need pause and resume.

Modal fits when

  • You need GPUs.
  • You want to pay only for usage, with no plan fee.
  • You use the Claude Agent SDK or Claude Code.
  • You want the larger free credit: $30 against $10.

More comparisons

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