High-risk AI system (EU AI Act)
An AI system the EU AI Act places in its high-risk class, which brings extra duties before and after it is placed on the market.
Last updated
What it is.
Article 6 of the AI Act (Regulation (EU) 2024/1689) sets two routes into the high-risk class. The first is AI that is a safety component of a product, or is itself a product, covered by the EU laws in Annex I and needing a third-party conformity assessment, such as some medical devices or machinery. The second is AI used in the areas listed in Annex III, such as biometrics, critical infrastructure, education, employment, access to essential services like credit and insurance, law enforcement, migration and justice.
An Annex III system can fall outside the class under Article 6(3) if it does not pose a significant risk, for example because it only does a narrow procedural task. That exemption never applies when the system profiles people. Providers must document that assessment.
Regulation (EU) 2026/1744, the Digital Omnibus on AI, moved the start dates for the high-risk rules: 2 December 2027 for Annex III systems and 2 August 2028 for Annex I systems (as checked on 2026-10-25).
Why it matters
High-risk status brings duties that shape the software itself: a risk management system, data governance, technical documentation, automatic logging, information for deployers, human oversight, accuracy, robustness and cybersecurity, a quality management system, conformity assessment and registration. Building logging and oversight in from the start is far easier than adding them later.
Common mistakes.
- 01
Using the original 2024 dates. The Omnibus moved the high-risk start dates.
- 02
Assuming the rules only apply to EU companies. They apply to systems placed on the EU market or whose output is used in the EU.
- 03
Claiming the Article 6(3) exemption for a system that profiles people.
Read the official text.
Primary sources this definition is based on.
- Regulation (EU) 2024/1689, the AI Act (Official Journal)checked 2026-10-25
- Regulation (EU) 2026/1744, Digital Omnibus on AI (Official Journal)checked 2026-10-25
- European Commission, AI Act overviewchecked 2026-10-25
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Related terms.
- Human-in-the-loop (HITL)A design where a person reviews, corrects or approves what an AI system produces before it takes effect.
- Guardrails (AI)Checks placed around an AI model that block, fix or flag unsafe, off-topic or incorrect inputs and outputs.
- LLM evals (evaluations)Repeatable tests that score how well a model, prompt or AI feature does a specific task.
- AI agentSoftware where a language model decides which steps to take and which tools to call, in a loop, to reach a goal.
