Cloudflare Sandbox vs Runta

Cloudflare Sandbox costs $0.072 per vCPU-hour and Runta costs $0.0504 per vCPU-hour. Cloudflare Sandbox runs Firecracker microVMs. Runta runs full VMs.

Updated Oct 14, 2026

Cloudflare Sandbox

Containers at the edge, driven from a Worker.

Isolation: Firecracker microVM
Free tier: None
Max session: Not listed

Visit site Cloudflare Sandbox 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

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

Field

Cloudflare Sandbox

Runta

vCPU, per hour: Cloudflare Sandbox: $0.072; Runta: $0.0504
RAM, per GiB-hour: Cloudflare Sandbox: $0.009; Runta: $0.0162
Storage: Cloudflare Sandbox: $0.000252 per GiB-hour; Runta: $0.000108 per GiB-hour
Free tier: Cloudflare Sandbox: None; Runta: $50 free credit
Paid plan from: Cloudflare Sandbox: $5 / month; Runta: Pay as you go
Billing: Cloudflare Sandbox: Active CPU time only; Runta: Per second
Isolation: Cloudflare Sandbox: Firecracker microVM; Runta: Full VM
SDKs: Cloudflare Sandbox: TypeScript; Runta: Python, TypeScript

Full comparison

18 fields, at each provider's list price

Cloudflare Sandboxdevelopers.cloudflare.com/containers/platform/pricingdevelopers.cloudflare.com

Runtarunta.com/pricing

Pricing

vCPU, per hour: Cloudflare Sandbox: $0.072; Runta: $0.0504
RAM, per GiB-hour: Cloudflare Sandbox: $0.009; Runta: $0.0162
Storage: Cloudflare Sandbox: $0.000252 per GiB-hour; Runta: $0.000108 per GiB-hour
Free tier: Cloudflare Sandbox: None; Runta: $50 free credit
Paid plan from: Cloudflare Sandbox: $5 / month; Runta: Pay as you go
Billing: Cloudflare Sandbox: Active CPU time only; Runta: Per second

Limits

Max session: Cloudflare Sandbox: Not listed; Runta: Not listed
Idle stop: Cloudflare Sandbox: Not listed; Runta: Not listed
Largest sandbox: Cloudflare Sandbox: 4 vCPU · 12 GiB; Runta: Not listed
Concurrent sandboxes: Cloudflare Sandbox: Not listed; Runta: Not listed

Platform

Isolation: Cloudflare Sandbox: Firecracker microVM; Runta: Full VM
GPU: Cloudflare Sandbox: Not listed; Runta: Not listed
Snapshots: Cloudflare Sandbox:; Runta:
Pause and resume: Cloudflare Sandbox: Not listed; Runta:

Developer

SDKs: Cloudflare Sandbox: TypeScript; Runta: Python, TypeScript
Integrations: Cloudflare Sandbox: Not listed; Runta: OpenAI Agents SDK

Trust

License: Cloudflare Sandbox: Not listed; Runta: Not listed
BYOC: Cloudflare Sandbox: Not listed; Runta: Not listed

Hourly cost

One sandbox running for one hour

Size

Cloudflare Sandbox

Runta

1 vCPU · 2 GiB: Cloudflare Sandbox: $0.090; Runta: $0.083
2 vCPU · 4 GiB: Cloudflare Sandbox: $0.180; Runta: $0.166
4 vCPU · 8 GiB: Cloudflare Sandbox: $0.360; Runta: $0.331

Compute only, at list rates.

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Which one fits

Based on the fields above

Cloudflare Sandbox fits when

You want each sandbox in its own microVM.
Your code waits a lot: CPU is billed only while it is in use.

Runta fits when

You want to pay only for usage, with no plan fee.
You want each sandbox to be a full VM.
You use the OpenAI Agents SDK.
You want the lower list price: $0.166 against $0.180 an hour for 2 vCPU and 4 GiB.

More comparisons

See all comparisons

Cloudflare Sandbox

Runta

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Cloudflare Sandbox fits when

Runta fits when

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