Runta vs Sendblue Sandboxes

Runta costs $0.0504 per vCPU-hour and Sendblue Sandboxes costs $0.165 per vCPU-hour. Sendblue Sandboxes runs containers.

Updated Oct 15, 2026

Runta

Isolated computers where AI agents work and keep state.

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

Visit site Runta profile

Sendblue Sandboxes

Isolated cloud Linux machines that AI agents control over an HTTP API.

Isolation: Container
Free tier: $100 free compute, once per phone number
Max session: Not listed

Visit site Sendblue Sandboxes profile

What is different

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

Field

Runta

Sendblue Sandboxes

vCPU, per hour: Runta: $0.0504; Sendblue Sandboxes: $0.165
RAM, per GiB-hour: Runta: $0.0162; Sendblue Sandboxes: Included
Free tier: Runta: $50 free credit; Sendblue Sandboxes: $100 free compute, once per phone number
Billing: Runta: Per second; Sendblue Sandboxes: Bundled machine time
Pause and resume: Runta:; Sendblue Sandboxes: No

Full comparison

18 fields, at each provider's list price

Runtarunta.com/pricing

Sendblue Sandboxessendblue.com/sandboxessendblue.com

Pricing

vCPU, per hour: Runta: $0.0504; Sendblue Sandboxes: $0.165
RAM, per GiB-hour: Runta: $0.0162; Sendblue Sandboxes: Included
Storage: Runta: $0.000108 per GiB-hour; Sendblue Sandboxes: Not listed
Free tier: Runta: $50 free credit; Sendblue Sandboxes: $100 free compute, once per phone number
Paid plan from: Runta: Pay as you go; Sendblue Sandboxes: Not listed
Billing: Runta: Per second; Sendblue Sandboxes: Bundled machine time

Limits

Max session: Runta: Not listed; Sendblue Sandboxes: Not listed
Idle stop: Runta: Not listed; Sendblue Sandboxes: After 10 minutes
Largest sandbox: Runta: Not listed; Sendblue Sandboxes: 2 vCPU · 8 GiB
Concurrent sandboxes: Runta: Not listed; Sendblue Sandboxes: Up to 5

Platform

Isolation: Runta: Not listed; Sendblue Sandboxes: Container
GPU: Runta: Not listed; Sendblue Sandboxes: Not listed
Snapshots: Runta:; Sendblue Sandboxes: Not listed
Pause and resume: Runta:; Sendblue Sandboxes: No

Developer

SDKs: Runta: Python, TypeScript; Sendblue Sandboxes: Not listed
Integrations: Runta: OpenAI Agents SDK, Claude Code; Sendblue Sandboxes: Not listed

Trust

License: Runta: Not listed; Sendblue Sandboxes: Not listed
BYOC: Runta: Not listed; Sendblue Sandboxes: Not listed

Hourly cost

One sandbox running for one hour

Size

Runta

Sendblue Sandboxes

1 vCPU · 2 GiB: Runta: $0.083; Sendblue Sandboxes: $0.165
2 vCPU · 4 GiB: Runta: $0.166; Sendblue Sandboxes: $0.330
4 vCPU · 8 GiB: Runta: $0.331; Sendblue Sandboxes: $0.660

Compute only, at list rates.

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Which one fits

Based on the fields above

Runta fits when

You use the OpenAI Agents SDK or Claude Code.
You want the lower list price: $0.166 against $0.330 an hour for 2 vCPU and 4 GiB.
You need snapshots.
You need pause and resume.

Sendblue Sandboxes fits when

You want the larger free credit: $100 against $50.

More comparisons

See all comparisons

Runta

Sendblue Sandboxes

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Runta fits when

Sendblue Sandboxes fits when

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