The problem

AI capability has outpaced enterprise control

Regulated organisations are moving agentic AI into production, but most lack control at the point of execution: policy enforcement on every agent call, real-time token cost control, architecture-aware compliance and sovereign control of inference and evidence.

When an incident happens, the evidence collection is scattered across provider logs, applications, approvals, security tools and cloud platforms.

The Grace Blackwell Platform closes this gap with HEX 165, delivered to users through applications such as TOPAS for Word. HEX 165 governs each AI request: enforcing policy, assessing compliance, controlling token flow, optimising cost and recording every material decision to a hash-chained audit log. Runtime security monitoring through the STPM Engine and air-gapped hosting through the Sovereign Edge IDN are both in progress.

The result is production AI that regulated enterprises can control, measure, evidence and trust.

The Grace Blackwell Platform

Governance today. Sovereign hosting in progress.

HEX 165 governs AI requests in your own UK cloud subscription or in a dedicated Grace Blackwell environment in a UK data centre. TOPAS for Word is the application your people use.

The Sovereign Edge IDN is our planned air-gapped hosting environment for the most sensitive workloads. It is not available yet.

Hosting in progress

Sovereign Edge IDN In progress

A planned sovereign hosting environment with the Inference Distribution Network (IDN) at its core. Five platform layers are designed to operate inside an approved UK / EU region, from sovereign connected environments to fully air-gapped operation for the most sensitive workloads.

The design keeps data, models, prompts, logs, telemetry and encryption keys in region. In air-gap mode, inbound and outbound connectivity is disabled, with ingress and egress controlled through approved transfer procedures.

Explore the Sovereign Edge IDN
Governance platform: four engines

HEX 165

The governance platform behind TOPAS for Word. Four engines cover policy, compliance, token cost and runtime security, which is in progress. Every AI request is checked against policy, sent only to an approved model and priced, with a hash-chained audit log generated by design.

HEX 165 moves AI governance below the application layer and into the execution path itself. It controls what agents are allowed to do, what context reaches the model, how tokens are routed and optimised, when human approval is required, and what evidence is retained for audit, compliance and operational review.

Explore HEX 165
Architecture

The platform, top to bottom

AI Workloads & Agents
Agentic applications
LLM / models
Data sources
APIs & tools
Governance
Engine
  • Policy-as-code
  • Agent control
  • Model versioning
  • Human-in-the-loop
Control · Policy · Approval
Compliance
Engine
  • EU AI Act
  • DORA
  • GDPR
  • NIST AI RMF
Assess · Evidence · Report
STPM
Engine · in progress
  • OpenTelemetry / OTLP
  • OCSF event mapping
  • Sigma detection rules
  • OPA / Rego controls
Detect · Protect · Respond
Stakeholders
Boards
CIO / CISO
Compliance
Regulators
Auditors

Applies each governance decision to the AI request · redaction, approved-model routing, token control and evidence · delivered in Word through TOPAS for Word

Hash-Chained Audit Log

Every policy decision, agent call, model load, approval and system event cryptographically recorded in a hash chain

Sovereign Edge IDN · In progress

Inference Distribution Network · planned UK / EU air-gapped hosting infrastructure

UK EU
Physical sovereign PoP

UK / EU territory. Sovereign control of people, process and infrastructure.

Air-gapped hardware

LPU inference compute. No inbound or outbound network connectivity.

200 GbE RoCE fabric

Sub-10 ms intra-cluster fabric for compute and storage traffic.

Write-once secure vault

WORM storage for audit logs, evidence and cryptographic keys.

Sneakernet kiosk

Controlled physical ingress / egress via tamper-evident encrypted media.

SC / NPPV3 cleared ops

Cleared personnel. Two-person rule. Full operational assurance.

UK / EU data residency
By design
UK hosting, UK law
Your cloud or ours
Approved models only
Approved regions
Zero Trust architecture
By design
Capability snapshot

What the platform delivers

Sovereign Edge IDN (in progress)HEX 165 enginesOpen standards
Physical sovereign Point of Presence Governance: policy engine, access, versions, TokenOps, audit, HITL OPA and Rego (policy as code)
Air-gapped compute (High Performance Compute) Compliance: 16 frameworks, 648 criteria across the four core frameworks, 15 agentic risk flags OpenTelemetry and OTLP (telemetry)
200 GbE RoCE fabric, NVMe-oF storage STPM (in progress): eBPF telemetry, privacy gateway, autonomous detection OCSF (security event schema)
Write-once secure vault for audit storage, UK / EU-controlled HSM keys TOPAS: redaction, approved-model routing, cost telemetry, payload compression, workload ROI Sigma (detection rules)
Sneakernet kiosk under two-person control Cross-engine audit log integration SPIFFE and SPIRE (workload identity)
Designed for

Highly regulated environments

UK / EU central government

SC clearance, sovereign data handling, NCSC alignment, CDDO compliance. AI workloads with citizen impact need defensible governance and audit.

Law enforcement and justice

Governed AI for document work in policing, the NCA and criminal justice through TOPAS for Word, with NPPV3 cleared personnel. Sensitive details are redacted before AI processing and every decision is recorded.

Healthcare and the NHS

Special-category clinical data under GDPR and DPIA requirements. The audit log supports CQC, ICO and clinical governance reviews.

Banking, insurance and capital markets

FCA, PRA and DORA obligations. Real-time AI cost visibility for FinOps and CFO reporting. Audit evidence for SS1/23 model risk management.

Deployment

Where HEX 165 runs

OptionWhere it runsTypical buyer
You hostYour own cloud subscription in a UK region, run by your team with Grace Blackwell supportOrganisations that want everything in-house
We hostA dedicated environment in a UK data centre, under UK law, run by Grace BlackwellA fast start, or limited cloud capacity
Full air-gap In progressSovereign Edge IDN, UK / EU-controlled physical PoPDefence-adjacent, intelligence, classified caseloads

Scope a 90-day proof of value

Bring one regulated workflow, one named policy authority, one target environment and one compliance framework. We scope a controlled proof of value across all four components.

Book a Briefing