Nebius Sandboxes vs Runtime

Runtime costs $0.025 per vCPU-hour. Nebius Sandboxes runs microVMs. Runtime runs Firecracker microVMs and has no session limit.

Updated Oct 23, 2026

Nebius Sandboxes

Sandboxes for AI agents that branch from any checkpoint.

Isolation: MicroVM
Free tier: Not listed
Max session: Not listed

Visit site Nebius Sandboxes profile

Runtime

Firecracker microVM sandboxes for AI agents, billed on the CPU that code uses.

Isolation: Firecracker microVM
Free tier: 100 hours of a 1 GB machine in the first 30 days
Max session: No limit

Visit site Runtime profile

What is different

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

Field

Nebius Sandboxes

Runtime

Concurrent sandboxes: Nebius Sandboxes: Up to 50; Runtime: Up to 200
Isolation: Nebius Sandboxes: MicroVM; Runtime: Firecracker microVM
SDKs: Nebius Sandboxes: Python; Runtime: JavaScript / TypeScript, Python, Go, Ruby, Java
Integrations: Nebius Sandboxes: LangChain, MCP; Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Full comparison

18 fields, at each provider's list price

Nebius Sandboxescontree.dev

Runtimewithruntime.com/pricingwithruntime.com

Pricing

vCPU, per hour: Nebius Sandboxes: Not listed; Runtime: $0.025
RAM, per GiB-hour: Nebius Sandboxes: Not listed; Runtime: $0.0075
Storage: Nebius Sandboxes: Not listed; Runtime: $0.000119 per GiB-hour after 10 free GiB
Free tier: Nebius Sandboxes: Not listed; Runtime: 100 hours of a 1 GB machine in the first 30 days
Paid plan from: Nebius Sandboxes: Not listed; Runtime: Pay as you go
Billing: Nebius Sandboxes: Not listed; Runtime: Active CPU time only

Limits

Max session: Nebius Sandboxes: Not listed; Runtime: No limit
Idle stop: Nebius Sandboxes: Not listed; Runtime: After 5 minutes
Largest sandbox: Nebius Sandboxes: Not listed; Runtime: 16 vCPU · 64 GiB
Concurrent sandboxes: Nebius Sandboxes: Up to 50; Runtime: Up to 200

Platform

Isolation: Nebius Sandboxes: MicroVM; Runtime: Firecracker microVM
GPU: Nebius Sandboxes: Not listed; Runtime: No
Snapshots: Nebius Sandboxes:; Runtime:
Pause and resume: Nebius Sandboxes: Not listed; Runtime:

Developer

SDKs: Nebius Sandboxes: Python; Runtime: JavaScript / TypeScript, Python, Go, Ruby, Java
Integrations: Nebius Sandboxes: LangChain, MCP; Runtime: OpenAI Agents SDK, Vercel AI SDK, Claude Agent SDK, LangChain, MCP, Claude Code

Trust

License: Nebius Sandboxes: Not listed; Runtime: Not listed
BYOC: Nebius Sandboxes: Not listed; Runtime: Not listed

Hourly cost

One sandbox running for one hour

Size

Nebius Sandboxes

Runtime

1 vCPU · 2 GiB: Nebius Sandboxes: Not listed; Runtime: $0.040
2 vCPU · 4 GiB: Nebius Sandboxes: Not listed; Runtime: $0.080
4 vCPU · 8 GiB: Nebius Sandboxes: Not listed; Runtime: $0.160

Compute only, at list rates.

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Which one fits

Based on the fields above

Nebius Sandboxes fits when

You need SOC 2 Type II, ISO 27001 and GDPR.

Runtime fits when

You use the OpenAI Agents SDK, the Vercel AI SDK, the Claude Agent SDK or Claude Code.
You need pause and resume.
You need a desktop in the sandbox.
Your code waits a lot: CPU is billed only while it is in use.

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Nebius Sandboxes

Runtime

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Nebius Sandboxes fits when

Runtime fits when

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