Verisum

Verisum is a cloud AI governance service for organisations that need to manage oversight alongside evidence of AI decisions. It suits teams preparing for audit or operating in regulated settings. Its breadth is a strength, but the plan limits and ban on UK GDPR special category data deserve careful consideration.

Overview

Verisum divides its work into Govern, Monitor and Prove. Govern brings together organisation surveys, AI system and vendor registers, policy generation, shadow-AI tracking, model registries, regulatory feeds and compliance frameworks. Monitor adds drift monitoring, incident logging, escalation workflows, runtime signals, staff declarations and team management. Prove covers decision ledgers, incident locks, attestations, approvals, Trust Exchange, provenance graphs, public verification and on-chain anchoring.

This span makes it relevant beyond teams that only need an inventory or policy tool: it also addresses operational oversight and evidence. The practical trade-off is that system, user and workflow capacity changes substantially by plan, so the entry tier may be a starting point rather than a fit for a growing governance programme.

Key features

Verisum supports AI system inventory, risk assessments, policies and controls, with UK AI Code, EU AI Act, NIST RMF and ISO 42001 frameworks. That gives governance teams several established frameworks to work against, while registers and monitoring tools connect policy work to ongoing operations.

Its Verify tier anchors attestations, incident locks and provenance records on EVM-compatible networks including Ethereum, Polygon and Arbitrum, allowing independent verification. The HAPP Protocol exposes REST APIs for approvals, attestations, provenance, exchanges, incident locks and public verification. This combination is aimed at organisations that need to share or verify evidence across organisational boundaries; it will be more than a smaller team needs if internal registers and policies are its main concern.

Verisum says data is encrypted in transit with TLS 1.2 or above and at rest with AES-256 through its managed database provider. Its DPA prohibits customers from submitting UK GDPR special category data. That restriction is material for organisations handling sensitive personal information: those data must stay out of the service.

Pricing

Verisum has a free plan, paid plans from £129/mo, and no free trial. The free Verisum Explorer plan is free forever and includes 1 assessment, 1 system, 1 vendor, 1 policy, public verification and CSV export. It is useful for a bounded evaluation or very small inventory, but its one-item caps make it unsuitable for a broader programme.

Verisum Core costs £129/month or £1,238/year (save 20%). It includes 2 AI systems, 10 vendors, 3 AI policies/month, 50 staff, 2 playbooks and 5 seats. This is the clearest fit for startups and scale-ups establishing governance, though the two-system and five-seat limits may constrain teams that expand.

Verisum Assure costs £499/month or £4,790/year (save 20%). It raises capacity to 6 AI systems, unlimited vendors, 10 AI policies/month, 250 staff, unlimited incidents, 10 playbooks and 10 users. Regulated teams with multiple systems and partner-facing proof needs get more room to operate, but the six-system, ten-user and policy quotas remain meaningful ceilings.

Verisum Verify has custom pricing and includes unlimited assessments, systems and users, cross-org Trust Exchange, API access and SSO/SAML. Its scale and integration features suit enterprise deployments, but buyers should expect to discuss price directly. Professional services include readiness assessments, continuous governance programmes, AI policy and compliance packs, and cryptographic proof setup.

Platforms

Verisum runs in the cloud and is available through web and API platforms. Teams seeking self-hosted deployment should consider another option.

Who it's for

Core is positioned for startups, scale-ups using AI, and teams preparing for audit or diligence. Assure targets regulated industries, multi-system deployments and teams issuing proofs to partners. Verify is aimed at enterprises, regulated industries, high-stakes AI deployments and organisations under the EU AI Act. The most convincing case for Verisum is a team that needs governance workflows and verifiable evidence together; a small organisation with one system may find Explorer's caps restrictive and paid capacity premature.

Pros and cons

• Pros: Governance, monitoring and proof capabilities sit within one service, reducing the need to treat registers, incident workflows and evidence as separate workstreams.
• Pros: Public verification is present even on the free Explorer plan, while Verify adds on-chain anchoring and cross-organisation exchange for higher-stakes use.
• Cons: Explorer is capped at one system, vendor, policy and assessment, limiting its usefulness beyond a narrow trial.
• Cons: The DPA bars UK GDPR special category data, which rules out submitting that category of information.
• Cons: Core and Assure impose system, seat or user and policy limits; Verify's custom pricing makes its cost less predictable.

Alternatives

For a broader category comparison, see AI Governance Software. Choose Trusys AI instead if self-hosted deployment matters alongside API and web access; it also offers a free plan and free trial. Prufer is another freemium API and web option with a free trial, but its free plan retains audit data for 7 days and has no uptime guarantee or SLA credits.

SAS/STAT is a paid alternative with a free trial and support for Linux, macOS, Windows, web and self-hosted platforms. Openlayer Guardrails may suit teams looking for API, web or self-hosted access and a free tier. AI Verify is a free, open-source toolkit under the permissive Apache 2.0 license, with API, Linux, self-hosted and web support.

AIGovernr offers a web-based freemium option, with a Professional plan at $79 USD/month. SAS Visual Statistics is a paid option with a free trial that runs on SAS Viya for enterprise-scale statistical modeling. Collibra is a paid platform spanning API, extension, self-hosted and web access.

Verdict

Choose Verisum if your organisation needs AI governance joined to monitoring and independently verifiable proof, particularly for audit, regulated use or partner-facing evidence. Its tiered plans provide a route from a tightly capped free start to unlimited enterprise capacity. Look elsewhere if self-hosting is essential or your work requires UK GDPR special category data; for smaller teams, check that system and seat limits will not quickly force an upgrade.