Modal vs Runta

Modal costs $0.070956 per vCPU-hour and Runta costs $0.0504 per vCPU-hour. Modal runs gVisor, offers GPUs and limits a session to 24 hours. Runta runs full VMs.

Updated Oct 14, 2026

Modal

Serverless compute with sandboxes and GPUs.

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

Visit site Modal profile

Runta

Isolated computers where AI agents work and keep state.

Isolation: Full VM
Free tier: $50 free credit
Max session: Not listed

Visit site Runta profile

What is different

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

Field

Modal

Runta

vCPU, per hour: Modal: $0.070956; Runta: $0.0504
RAM, per GiB-hour: Modal: $0.024012; Runta: $0.0162
Free tier: Modal: $30 credit every month; Runta: $50 free credit
Isolation: Modal: gVisor; Runta: Full VM
SDKs: Modal: Python, JavaScript / TypeScript, Go; Runta: Python, TypeScript
Integrations: Modal: Claude Agent SDK, Claude Code; Runta: OpenAI Agents SDK

Full comparison

18 fields, at each provider's list price

Modalmodal.com/pricing

Runtarunta.com/pricing

Pricing

vCPU, per hour: Modal: $0.070956; Runta: $0.0504
RAM, per GiB-hour: Modal: $0.024012; Runta: $0.0162
Storage: Modal: Not listed; Runta: $0.000108 per GiB-hour
Free tier: Modal: $30 credit every month; Runta: $50 free credit
Paid plan from: Modal: Pay as you go; Runta: Pay as you go
Billing: Modal: Per second; Runta: Per second

Limits

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

Platform

Isolation: Modal: gVisor; Runta: Full VM
GPU: Modal:; Runta: Not listed
Snapshots: Modal:; Runta:
Pause and resume: Modal: Not listed; Runta:

Developer

SDKs: Modal: Python, JavaScript / TypeScript, Go; Runta: Python, TypeScript
Integrations: Modal: Claude Agent SDK, Claude Code; Runta: OpenAI Agents SDK

Trust

License: Modal: Not listed; Runta: Not listed
BYOC: Modal: Not listed; Runta: Not listed

Hourly cost

One sandbox running for one hour

Size

Modal

Runta

1 vCPU · 2 GiB: Modal: $0.119; Runta: $0.083
2 vCPU · 4 GiB: Modal: $0.238; Runta: $0.166
4 vCPU · 8 GiB: Modal: $0.476; Runta: $0.331

Compute only, at list rates.

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Which one fits

Based on the fields above

Modal fits when

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

Runta fits when

You want each sandbox to be a full VM.
You use the OpenAI Agents SDK.
You want the lower list price: $0.166 against $0.238 an hour for 2 vCPU and 4 GiB.
You want the larger free credit: $50 against $30.

More comparisons

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Modal

Runta

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Modal fits when

Runta fits when

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