> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lyceum.technology/llms.txt
> Use this file to discover all available pages before exploring further.

# Clusters

> Dedicated multi-node GPU clusters with InfiniBand networking

<Note>
  Clusters are an **enterprise** offering. Capacity is reserved per contract, there is no self-service launch flow.
</Note>

Clusters are dedicated multi-node GPU deployments built for distributed training and large-scale inference. They span H100, H200, and B200 hardware interconnected with 400 Gb/s NDR InfiniBand for the cross-node bandwidth distributed training requires.

## When you need a cluster

A cluster is the right primitive when:

* Your training job spans multiple machines (NCCL all-reduce across nodes)
* You need a fixed pool of capacity reserved for a project, with predictable cost
* You want bare-metal performance with no neighbours and a known network topology
* You're running for weeks or months, not hours

For everything else, use:

* **A single VM** for one machine of any size, see [Instances](/docs/instances/vms)
* **Serverless runs** for one-shot jobs that fit on a single node, see [Runs](/docs/serverless/runs)
* **Dedicated inference** for serving models, see [Dedicated Inference](/docs/inference/dedicated)

## What you get

* Bare-metal nodes (H100, H200, or B200) with 400 Gb/s InfiniBand
* Reserved capacity for the contract duration (1 week to 1 year+)
* Enterprise SLA support
* Per-cluster access credentials (SSH keys, VPN, kubeconfig as appropriate)
* Hardware health telemetry (GPU temperature, memory, power) and benchmark results

## Managing a cluster

Provisioned multi-node deployments are exposed under `/api/v2/external/infra/deployments`. The same data backs the dashboard's nodes, access, benchmarks, contract, and invoice views. Each cluster has:

* **Nodes**, per-node hardware specs and live health snapshots
* **Access**, credentials for SSH, VPN, kubeconfig, or web console
* **Benchmarks**, synthetic performance benchmarks run on the hardware (with downloadable raw results)
* **Contract**, the agreement covering this cluster (term, monthly price, notice period, downloadable PDF)
* **Invoices**, billing history specific to this cluster

## Get in touch

For pricing and provisioning details, contact [support@lyceum.technology](mailto:support@lyceum.technology).