What CUI Overlay Requires Beyond SOC 2 GPU Security

A CUI overlay on GPU infrastructure is a set of handling, personnel, and boundary controls for Controlled Unclassified Information that goes beyond a SOC 2 report about general security processes. SOC 2 can be useful evidence. It does not authorize CUI on a shared GPU cloud by itself. If your contract mentions CUI, ask for the overlay, not only the logo.

This is a buyer checklist for government-adjacent AI teams. It is not a claim that OneSource Cloud holds a specific CUI authorization. Exclusive U.S. GPUs can make the overlay feasible. They do not replace the overlay.

SOC 2 answers a different exam

CUI is not one product. Marking, dissemination, and physical access follow the CUI registry categories in the contract. A generic “government cloud” SKU may still be the wrong category. ITAR is another overlay entirely. Do not merge them in a spreadsheet because both sound official.

GPU-specific gaps SOC 2 will not close

Crash dumps, notebook images, and training logs can hold CUI. Shared tenancy means extra eyes on the node. A SOC 2 Type II that never sampled GPU dump handling is silent on that path. Demand exclusive nodes, named admin identities, and a dump policy. Then keep CUI datasets off the student partition.

If the provider’s support staff sit outside the allowed person set, break-glass is a CUI incident waiting for a ticket. Write who may join a session before the first outage.

How to buy without over-claiming

Start from the contract’s CUI categories. Map them to tenancy, personnel, residency, and logging. Use SOC 2 as one artifact. Add the overlay evidence: personnel attestations, facility list, subprocessor list, and a CUI handling procedure that mentions GPUs by name. If the vendor only has SOC 2, you do not have a CUI story yet.

OneSource Cloud can place exclusive GPUs in a U.S. private AI infrastructure model that government contractors often need as a starting boundary. Managed operations matter because patch and access records are overlay evidence. This is not a FedRAMP or CUI authorization claim. Ask for the packet. AI storage and named workspaces on OnePlus, OneSource Cloud’s AI orchestration platform, only help if CUI data never lands on a shared research queue.

FAQ

What does a CUI overlay require beyond SOC 2 on GPU clouds?

Personnel constraints, CUI marking and handling, documented U.S. residency for the actual volumes and jobs, tighter subprocessors, and GPU-specific dump and support rules. SOC 2 shows a security program exists. It does not prove those CUI rules were implemented on this cluster. Ask for both. Do not treat the SOC 2 PDF as the overlay.

Is SOC 2 enough for government contractor GPU hosting?

Enough for a first filter, not enough if the contract has CUI. Many commercial GPU clouds will show SOC 2 and still use mixed-national support and shared tenancy. Read the contract category. If CUI is in scope, exclusive tenancy and a handling procedure are the next documents, not a bigger GPU SKU.

Does exclusive GPU hardware satisfy CUI?

It removes noisy neighbors and can shrink the admin set. It does not mark data, train personnel, or set reporting clocks. Hardware is necessary for many CUI GPU designs. It is not sufficient. Programs fail on logs and support access as often as on tenancy.

How is CUI different from ITAR on GPU clusters?

ITAR controls defense articles and technical data with a different legal regime. CUI is a broader U.S. government handling framework. A cluster that is careful with CUI may still be wrong for ITAR, and the reverse can also be true. Split the reviews. One “gov” checkbox is how export data lands on the wrong partition.

What should we put in the RFP?

CUI categories, US-persons requirements if any, dump handling, subprocessor list, residency of backups, and whether support can see GPU consoles. Attach a request for evidence, not a request for a marketing sentence. SOC 2 can be exhibit A. It should not be the only exhibit.

Summary

CUI overlays add personnel, marking, residency, and GPU dump rules that SOC 2 does not prove. Exclusive U.S. GPUs can host that overlay; they are not the overlay. If you need a private boundary to start that packet, use OneSource Cloud private AI infrastructure and keep CUI off shared queues on OnePlus.