| Tenancy | Dedicated bare-metal, single-tenant | Dedicated bare-metal, single-tenant | Shared-pool or marketplace |
| Fabric | IB-NDR or eq. (3.2 Tbps RDMA, 8×400 Gbps) | IB-HDR / RoCE-v2 / EFA / mixed disclosed | Ethernet / variable / undisclosed |
| Bundle depth | Managed ops, tiered support, observability, egress allowance, compliance | Basic support, no managed ops | Self-serve, no support tier |
| Typical operators | AWS · Azure · OCI · GCP · CoreWeave · Nebius | Lambda OD · RunPod Secure · Crusoe · Hyperstack | RunPod Community · Vast.ai · Together MoE |
| Use case | Production training, regulated workloads | Dedicated training, less ceremony | Cost-sensitive batch, dev/test, spot |