⚡ Enterprise Tier

The Monster Cluster.
Your Building.

Four Mac Studios. Two terabytes of unified memory. Models up to 1 trillion parameters. Full rack with NAS, managed switch, UPS, and cooling — everything private, nothing in the cloud. One senior partner spends 2 hours a day on tasks this cluster handles in minutes. At $800/hour, the hardware pays for itself in under 4 months.

2TB
Unified Memory
1T+
Parameters
6+
Parallel Slots
0
Data Leaves
Book a Cluster Call Start Smaller →
⚡ Sovereign Cluster — 4U Rack
Mac Studio M5 Ultra — Node 1
512GB unified memory · Thunderbolt 5
Mac Studio M5 Ultra — Node 2
512GB unified memory · Thunderbolt 5
Mac Studio M5 Ultra — Node 3
512GB unified memory · Thunderbolt 5
Mac Studio M5 Ultra — Node 4
512GB unified memory · Thunderbolt 5
Synology NAS — 64TB Raw
Client data, model weights, audit logs
10GbE Managed Switch
Low-latency inter-node fabric + LAN
Mac mini — Control Node
Cluster management, monitoring, agents
APC Smart-UPS 1500VA
20-min runtime · auto-shutdown on outage
SOVEREIGN ATX · PRIVATE CLUSTER

Not a cloud box.
A real server.

The Sovereign Cluster is a purpose-built private AI rack. Four Mac Studio M5 Ultras connected via Thunderbolt 5 full mesh, pooling 2TB of unified memory into a single inference fabric. NAS for persistent storage, managed switch for inter-node traffic, UPS for power continuity.

It runs models that simply don't fit on single-node hardware — Kimi K2.5 (595GB INT4), full-precision Qwen3.5-397B, and future trillion-parameter models as they're released. All private, all local, all yours.

  • ⚡Thunderbolt 5 full-mesh — 120 Gbps per link, ~3µs latency between nodes
  • ⚡Sovereign-branded rack enclosure — looks like a server, runs like one
  • ⚡Passive and active cooling designed for 24/7 inference load
  • ⚡Remote monitoring — Sovereign watches health, you never touch it
Full Specifications

What 2TB of unified memory
actually means

Unified memory means no VRAM bottleneck, no model sharding penalty. The entire model loads into memory and runs at full bandwidth — 819 GB/s per node, 3.2 TB/s total.

Total Memory
2TB
4 × 512GB M5 Ultra unified memory — pooled via Thunderbolt 5 full mesh. Enough for Kimi K2.5 in INT4 (595GB) with room for KV cache.
Memory Bandwidth
3.2 TB/s
4 × 819 GB/s per M5 Ultra node. More bandwidth than a DGX H100 SXM — and it runs on 300W total, not 10,000W.
Parallel Inference Slots
6–8
Simultaneous inference requests handled without queuing. 6 users can run heavy queries at once without any degradation.
Generation Speed
60+ tok/s
On 397B INT4 across 4 nodes via exo distributed inference. Larger models proportionally slower, smaller models proportionally faster.
Context Window
128K
Full without chunking. Reads an entire contract, case file, or medical record in a single pass.
Power Draw
~500-600W
Full cluster under heavy inference load. NetworkChuck measured 520-600W on a 4-node M4 Ultra cluster. A comparable GPU cluster draws 8-15× more.
Full Component List

Every component. No surprises.

ComponentSpecPurposeQty
Mac Studio M5 Ultra512GB unified memoryPrimary inference nodes4
Thunderbolt 5 Cable40/120 Gbps, 1.8mFull-mesh inter-node fabric6
Synology NAS DS1823xs+64TB raw (8× 8TB)Model storage, client data, logs1
10GbE Managed SwitchUbiquiti UniFi Pro 24LAN + inter-node ethernet1
Mac mini M416GB, 512GB SSDCluster control, monitoring, agent orchestration1
APC Smart-UPS 1500VA1500VA / 1000WPower backup, clean shutdown on outage1
Sovereign Rack EnclosureCustom, brandedHouses all components, cable management, cooling1
Installation & ConfigOn-site by SovereignFull setup, agent deployment, team trainingIncluded
The Reality Check

vs. GPU Cloud

You can get similar capability from a cloud GPU cluster — if you're okay with your data leaving the building and a $40,000/month bill.

Cloud GPU Cluster

8× H100 SXM (bare metal)

Monthly cost$38,000–48,000/mo
Memory640GB HBM3
Power draw~10,000W
Data locationCloud provider's DC
HIPAA/privilegeRequires BAA negotiation
Setup timeHours to days
⚡ Sovereign Cluster

4× Mac Studio M5 Ultra

Monthly cost$7,000/mo (rental)
Memory2,048GB unified
Power draw~300W
Data locationYour building
HIPAA/privilegePhysical — not contractual
Setup timeOne afternoon
Cluster Pricing

Two ways to own it

Rent the cluster and we handle everything, or build it out permanently and own the hardware outright. Either way, all data stays in your building.

Cluster Rental

All-inclusive monthly

$7,000/month

Hardware included. We own it, maintain it, update it, and replace any failures. You just use it.

  • 4× Mac Studio M5 Ultra (512GB each)
  • Full rack — NAS, switch, UPS, cabling
  • On-site installation by Sovereign
  • All model updates included
  • Hardware replacement covered
  • Custom agents + integrations
  • Month-to-month, no annual lock-in
⚡ Cluster Build

Permanent installation

~$75,000 build + $2,500/mo

Full enterprise build: 4 Studios, Mac Mini agent workstations, complete rack infrastructure. You own everything. We maintain it.

  • 4× Mac Studio M5 Ultra (512GB each)
  • 5–10× Mac Mini agent workstations
  • Full rack — NAS, switch, UPS, cabling, enclosure
  • Client owns all hardware from day one
  • On-site build by Sovereign team
  • $2,500/mo — all maintenance, updates, agents
  • Best long-term economics at 3+ years
  • If Sovereign ATX ever shuts down: hardware stays with you, no repossession
  • Manage it yourself or hire any service provider — you're not locked to us

Ready for enterprise-scale
private AI?

The cluster is designed for organizations with serious AI workloads and serious data sensitivity. If that's you, let's talk through the spec and timeline.

Book a Cluster Call See All Options

Not ready for the cluster? Start with the interim setup →