Login Get a Demo
01 Explainer

What is an AI‑BOM?

An AI bill of materials is the ingredient list for an AI system. It is the foundation for securing, governing and proving the AI you run.

The short answer

What is an AI‑BOM?

Last updated
Read time
5 min read
From
Cranium AI
Share on LinkedIn

An AI‑BOM, or AI bill of materials, is a structured inventory of everything that makes up an AI system: its models, the data used to train and run them, the code and frameworks around them, the infrastructure they depend on and the processes that produce them.

Where a software bill of materials (SBOM) lists code components, an AI‑BOM captures the AI-specific parts that SBOM tools cannot detect.

Key takeaways
  • An AI‑BOM inventories the models, data, code, infrastructure and processes inside an AI system.
  • SBOM tools can’t detect AI components, so an AI‑BOM fills the gap rather than replacing the SBOM.
  • Cranium ONE generates AI‑BOMs automatically, one per repository, each with an owner.
02 Inside an AI-BOM

What an AI‑BOM contains

Think of it as an exploded view of an AI system: every layer, recorded and traceable.

01

Models

Which models are used, where they came from, their versions and how they were fine-tuned.

02

Data

The datasets behind training, fine-tuning, evaluation and retrieval, with their sources.

03

Code and frameworks

The AI libraries, SDKs and agent frameworks the system relies on.

04

Infrastructure

Where the system runs: cloud services, endpoints and hosting.

05

Processes and ownership

How the system is built and changed, and who is accountable for it.

06

Risk and assessment findings

Known vulnerabilities and assessment results linked to the components they affect.

03 Compare

AI‑BOM vs. SBOM

They are complementary. Most organizations need both, because each answers a different question.

SBOMAI‑BOM
FocusSoftware components and packagesAI models and their data, infrastructure and processes
AnswersWhat code is in this application?What AI is in this system, and what is it made of?
Detects AI componentsNoYes
SupportsSoftware supply chain securityAI supply chain risk, AI governance and AI compliance
04 Why it matters

Why every AI program needs an AI‑BOM

01

You cannot secure what you cannot see

An AI‑BOM turns shadow AI into a known, owned inventory, the first step of the AI Trust Loop.

See Discover
02

Faster response

When a model or library is found to be unsafe, an AI‑BOM shows exactly which systems use it.

03

Compliance evidence

Frameworks such as the EU AI Act, NIST AI RMF and ISO 42001 expect you to know what your AI is built from.

04

Vendor transparency

Vendors can attach AI‑BOMs to Cranium AI Cards, so customers see what is inside the AI they buy.

See AI Cards
05 How to build one

How Cranium AI generates AI‑BOMs

  1. Scan code, cloud and agents

    Detect AI, CodeSensor, CloudSensor and AgentSensor find AI wherever it lives.

  2. Generate automatically

    Cranium ONE builds AI‑BOMs from what it finds, one per repository.

  3. Assign an owner

    Each AI‑BOM has an accountable owner, so every component has someone answerable for it.

  4. Attest what scans cannot see

    CodeSensor does not scan infrastructure, so infrastructure components are added through self-attestation.

  5. Share as evidence

    Attach AI‑BOMs to AI Cards to prove posture to auditors, customers and partners.

06 Keep going

Related reading.

07 Questions

Frequently asked questions.

Straight answers, kept current. Last updated .

Ask us anything →
What is an AI‑BOM?

An AI‑BOM, or AI bill of materials, is a structured inventory of an AI system’s models, data, code, infrastructure and processes.

What is the difference between an AI‑BOM and an SBOM?

An SBOM lists software components. An AI‑BOM covers AI models and their data, infrastructure and processes. SBOM tools cannot detect AI components, so an SBOM alone leaves AI out.

What does AI‑BOM stand for?

AI bill of materials. You will also see it written as AIBOM or AI BOM.

How many AI‑BOMs does an organization need?

In Cranium ONE, AI‑BOMs are generated per repository, each with an assigned owner, so larger organizations typically have many.

Can an AI‑BOM be generated automatically?

Yes. Cranium ONE generates AI‑BOMs automatically from what Detect AI, CodeSensor, CloudSensor and AgentSensor discover. Infrastructure components that are not scanned are added through self-attestation.

Who uses an AI‑BOM?

Security teams use it to find exposure, governance and compliance teams use it as evidence, and vendor-risk teams request it from suppliers through AI Cards.

08 See it for yourself

Know what your AI is made of.
Every model, every layer.

See how Cranium ONE discovers your AI and builds AI‑BOMs automatically.