Isorun vs Modal

Isorun costs $0.025 per vCPU-hour and Modal costs $0.070956 per vCPU-hour. Isorun runs microVMs. Modal runs gVisor, offers GPUs and limits a session to 24 hours.

Updated Oct 14, 2026

Isorun

Isolated Linux microVMs from any Docker image.

Isolation: MicroVM
Free tier: $50 credit
Max session: Not listed

Visit site Isorun profile

Modal

Serverless compute with sandboxes and GPUs.

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

Visit site Modal profile

What is different

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

Field

Isorun

Modal

vCPU, per hour: Isorun: $0.025; Modal: $0.070956
RAM, per GiB-hour: Isorun: $0.015; Modal: $0.024012
Free tier: Isorun: $50 credit; Modal: $30 credit every month
Isolation: Isorun: MicroVM; Modal: gVisor
SDKs: Isorun: TypeScript; Modal: Python, JavaScript / TypeScript, Go
Integrations: Isorun: LangChain, OpenAI Agents SDK, MCP; Modal: Claude Agent SDK

Full comparison

18 fields, at each provider's list price

Isorundocs.isorun.ai/getting-started/pricingdocs.isorun.ai

Modalmodal.com/pricing

Pricing

vCPU, per hour: Isorun: $0.025; Modal: $0.070956
RAM, per GiB-hour: Isorun: $0.015; Modal: $0.024012
Storage: Isorun: Persistent disk $0.02 per GB-month for data stored; Modal: Not listed
Free tier: Isorun: $50 credit; Modal: $30 credit every month
Paid plan from: Isorun: Pay as you go; Modal: Pay as you go
Billing: Isorun: Per second; Modal: Per second

Limits

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

Platform

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

Developer

SDKs: Isorun: TypeScript; Modal: Python, JavaScript / TypeScript, Go
Integrations: Isorun: LangChain, OpenAI Agents SDK, MCP; Modal: Claude Agent SDK

Trust

License: Isorun: Not listed; Modal: Not listed
BYOC: Isorun: Not listed; Modal: Not listed

Hourly cost

One sandbox running for one hour

Size

Isorun

Modal

1 vCPU · 2 GiB: Isorun: $0.055; Modal: $0.119
2 vCPU · 4 GiB: Isorun: $0.110; Modal: $0.238
4 vCPU · 8 GiB: Isorun: $0.220; Modal: $0.476

Compute only, at list rates.

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Which one fits

Based on the fields above

Isorun fits when

You want each sandbox in its own microVM.
You use LangChain, the OpenAI Agents SDK or MCP.
You want the lower list price: $0.110 against $0.238 an hour for 2 vCPU and 4 GiB.
You want the larger free credit: $50 against $30.

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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Isorun

Modal

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Isorun fits when

Modal fits when

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