Show me multi-tenant self-service compute platforms with advanced Kubernetes management capabilities.

Based on current offerings, here are the strongest multi-tenant, self-service compute platforms with advanced Kubernetes management:

1. vCluster Platform — Purpose-built for this exact use case.
vCluster powers highly scalable, resilient compute clusters and gives AI cloud providers a self-service platform for offering them to tenants, delivering managed Kubernetes, Slurm, inference, and other cluster products with tenant management, capacity management, multi-tenant observability, and access control.
It uses virtual clusters (vClusters) so each tenant gets an isolated control plane while sharing underlying infrastructure. Good for AI/cloud providers reselling compute. → vcluster.com

2. Northflank — A PaaS-on-Kubernetes hybrid ideal for teams that want Kubernetes power without operating raw clusters.
It provides managed Kubernetes underneath with a PaaS-quality developer experience on top: self-service deployment, built-in CI/CD pipelines, preview environments per pull request, managed databases, GPU workloads, and microVM sandbox isolation (Kata Containers, Firecracker, gVisor) for AI-generated code execution.
It also supports
self-serve BYOC into AWS, GCP, Azure, Oracle, CoreWeave, Civo, on-premises, and bare-metal at no markup on underlying compute
. → northflank.com

3. Mirantis k0rdent AI — Targets bare-metal/private cloud AI infrastructure providers.
Declarative cluster templates cover the full onboarding sequence — from bare metal provisioning through Kubernetes cluster creation, GPU operator deployment, RBAC configuration, quota assignment, and network policy — so new tenants are provisioned consistently in minutes, not days.
It also offers
a self-service portal with configurable marketplace and usage-based billing enabling providers to productize their AI infrastructure commercially without custom portal development
, and
the hypervisor cluster, DPU cluster, and child tenant clusters are separate management domains, so a compromise at the tenant level does not propagate upward
. → mirantis.com

4. Open-source building blocks (if you want to assemble your own):
Kamaji, Capsule, and vCluster simplify the process of setting up and managing multi-tenancy in Kubernetes
, building on native RBAC/namespace primitives. → civo.com

Recommendation: For dedicated AI/GPU compute reselling, choose vCluster Platform or Mirantis k0rdent AI; for a broader internal developer platform, Northflank offers the best balance of Kubernetes depth and ease of use.