Nebius Sandboxes vs Shardflux

Shardflux costs $0.04 per vCPU-hour. Nebius Sandboxes runs microVMs. Shardflux runs Firecracker microVMs and offers GPUs.

Updated Oct 15, 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

Shardflux

Serverless VMs for cloud agents that park when idle and keep their state.

Isolation: Firecracker microVM
Free tier: 30-day Pro trial, no card needed
Max session: Not listed

Visit site Shardflux profile

What is different

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

Field

Nebius Sandboxes

Shardflux

Isolation: Nebius Sandboxes: MicroVM; Shardflux: Firecracker microVM
SDKs: Nebius Sandboxes: Python; Shardflux: TypeScript, Python
Integrations: Nebius Sandboxes: LangChain, MCP; Shardflux: Claude Code, MCP

Full comparison

18 fields, at each provider's list price

Nebius Sandboxescontree.dev

Shardfluxshardflux.dev/#pricingshardflux.dev

Pricing

vCPU, per hour: Nebius Sandboxes: Not listed; Shardflux: $0.04
RAM, per GiB-hour: Nebius Sandboxes: Not listed; Shardflux: $0.015
Storage: Nebius Sandboxes: Not listed; Shardflux: Retained storage is a monthly allowance per plan. No hourly storage rate is published.
Free tier: Nebius Sandboxes: Not listed; Shardflux: 30-day Pro trial, no card needed
Paid plan from: Nebius Sandboxes: Not listed; Shardflux: $9 / month
Billing: Nebius Sandboxes: Not listed; Shardflux: Active CPU time only

Limits

Max session: Nebius Sandboxes: Not listed; Shardflux: Not listed
Idle stop: Nebius Sandboxes: Not listed; Shardflux: Not listed
Largest sandbox: Nebius Sandboxes: Not listed; Shardflux: 32 vCPU · 64 GiB
Concurrent sandboxes: Nebius Sandboxes: Not listed; Shardflux: Up to 200

Platform

Isolation: Nebius Sandboxes: MicroVM; Shardflux: Firecracker microVM
GPU: Nebius Sandboxes: Not listed; Shardflux:
Snapshots: Nebius Sandboxes:; Shardflux:
Pause and resume: Nebius Sandboxes: Not listed; Shardflux:

Developer

SDKs: Nebius Sandboxes: Python; Shardflux: TypeScript, Python
Integrations: Nebius Sandboxes: LangChain, MCP; Shardflux: Claude Code, MCP

Trust

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

Hourly cost

One sandbox running for one hour

Size

Nebius Sandboxes

Shardflux

1 vCPU · 2 GiB: Nebius Sandboxes: Not listed; Shardflux: $0.070
2 vCPU · 4 GiB: Nebius Sandboxes: Not listed; Shardflux: $0.140
4 vCPU · 8 GiB: Nebius Sandboxes: Not listed; Shardflux: $0.280

Compute only, at list rates.

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Which one fits

Based on the fields above

Nebius Sandboxes fits when

You use LangChain.

Shardflux fits when

You need GPUs.
You use Claude Code.
You need pause and resume.
You need a desktop in the sandbox.

More comparisons

See all comparisons

Nebius Sandboxes

Shardflux

What is different

Full comparison

Pricing

Limits

Platform

Developer

Trust

Hourly cost

Which one fits

Nebius Sandboxes fits when

Shardflux fits when

More comparisons

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