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Free tool · Article 3(1)

AI System Definition Checker

Four questions, indicative result. Determine whether your software meets the Article 3(1) definition of an AI system — the first gate that decides whether the Act applies at all.

AI System Definition Checker

Question 1 of 4 · Article 3(1) test

Does the system produce outputs (predictions, recommendations, decisions, classifications, generated content) by inferring from its inputs?

The Article 3(1) definition centres on inference. A spreadsheet that adds a column is not AI; a system that predicts churn from customer behaviour is.

Frequently asked

What is the EU AI Act's definition of an AI system? +

Article 3(1): "AI system means a machine-based system that is designed to operate with varying levels of autonomy and that may exhibit adaptiveness after deployment, and that, for explicit or implicit objectives, infers, from the input it receives, how to generate outputs such as predictions, content, recommendations, or decisions that can influence physical or virtual environments."

Why does the definition matter? +

If your system isn't an AI system, the Act doesn't apply. If it is, you need to classify it into a risk tier and meet the corresponding obligations. The definition is the first gate.

Is a deterministic rules engine an AI system? +

Usually no. A purely rule-based system where a human has explicitly coded the logic for every input typically lacks the 'inference' and 'autonomy' that the Act requires. But the line is fuzzy — a complex rule engine with optimisation may cross it. Document your rationale.

Where does this tool sit relative to the full Klarvo product? +

This tool gives you a one-shot indicative answer. The full product re-runs the definition test as part of every classification, stores your reasoning in the audit log, and links it to the system record permanently.

In scope? Classify the system properly.

Klarvo's free tier runs the full KlarvoEngine pipeline on your system and stores everything for audit.

Free tier · Full KlarvoEngine classification · No credit card