Answers · CMMC & AI compliance
How much does CMMC AI monitoring cost?
CMMC AI monitoring in 2026 costs anywhere from $499 one-time to over $149,000 per year, depending on architecture. A self-hosted AI firewall starts at a $499 one-time assessment report with published subscription plans after; enterprise cloud DLP platforms are typically quoted in the tens of thousands per year; and Microsoft's compliant path — Copilot inside GCC High — carries a migration commonly quoted at $149K–$200K per year before licensing. For context, a CMMC Level 2 assessment itself runs $30K–$150K, so the AI-monitoring line item should be small next to what it protects.
The 2026 price landscape by architecture
| Approach | Typical cost | What you get |
|---|---|---|
| Self-hosted AI firewall (HoundShield) | $499 one-time assessment; published plans after | Local scanning on your infra + NIST 800-171-mapped evidence PDF |
| Cloud AI DLP (Nightfall-class) | Enterprise-quoted, commonly $25K–$80K/yr | Cloud-scanned DLP dashboards across SaaS apps |
| Per-seat browser DLP | Roughly $250/seat/yr at Prompt Security-class pricing | Browser-level AI controls, cloud-routed |
| Copilot inside GCC High | $149K–$200K/yr migration + E5/G5 licensing | AI inside a US-sovereign Microsoft boundary |
| Written policy only | $0 | No enforcement, no evidence — fails the assessor's follow-up |
Why the cheapest compliant option is usually local
Cloud DLP pricing scales with seats and data volume because the vendor runs the scanning infrastructure — and for CUI, routing content through that infrastructure is itself the compliance problem. A self-hosted scanner inverts both: your own hardware does the work (compute cost is trivial — scans run in milliseconds), and the data path stays inside your boundary, which is what the assessor is evaluating in the first place.
The honest exception: if you are already inside GCC High with E5/G5 licensing, Copilot there is incremental cost, not a migration — the full math is in our GCC High vs AI proxy cost analysis.
What the $499 actually buys
HoundShield's entry product is deliberately not a subscription: a $499 one-time CMMC AI Risk Assessment. The proxy runs 14 days in your environment (self-hosted Docker, on your own infrastructure), then produces a SHA-256-signed PDF that risk-scores every AI prompt event against NIST 800-171 Rev 2 — the evidence artifact for your SSP and your C3PAO conversation. No MSA, no procurement review for most orgs, no data leaving your network.
Frequently asked questions
Use AI without leaking CUI
HoundShield scans every AI prompt locally and blocks CUI before it leaves your network. One URL change. Under 10 minutes. C3PAO-ready.