Glossary
High-risk AI system
A European legal category for uses that can seriously affect health, safety or people's rights, carrying the heaviest duties before anything is deployed.
In plain terms
A label European law puts on uses of these tools where getting it wrong seriously hurts somebody. It is not about how clever the technology is. It is about what the output decides, so a simple tool making an important decision counts and a sophisticated one writing marketing copy does not.
Why it matters
Because the categories cover precisely the work businesses most want to hand over. Screening applicants, managing staff and deciding who gets access to something are all named, so the everyday assumption that this is about robots and weapons rather than about an ordinary office tool is exactly backwards.
How it works
The framework sorts systems into four levels: unacceptable, high, limited, and minimal or none. Most ordinary business use sits at the bottom two, which is worth saying plainly, because the point of the category is that a specific and named minority does not.
What lands a use in the top populated tier is the potential for serious harm to health, safety or people's fundamental rights. The test is about consequence rather than complexity, so the sophistication of the tool is not what decides it.
The named examples are ordinary commercial territory. Safety components in critical infrastructure, systems used in education institutions, tools for employment and the management of workers, and certain uses that give access to essential private and public services are all specifically identified.
The requirements attach before deployment rather than after. Risk assessment and mitigation, high-quality data chosen to reduce discriminatory outcomes, activity logging so results can be traced, detailed documentation, clear information to whoever deploys it, human oversight measures, and robustness, security and accuracy: all of that is meant to exist first.
One of those requirements points at your supplier. Clear and adequate information has to reach the organisation deploying the system, which means a buyer in this territory should be receiving documentation rather than asking whether any exists.
The classification is about the use, not the product. The same underlying tool can sit in different tiers depending on what it is pointed at, so an assessment attaches to a deployment and has to be revisited when the deployment changes.
What people expect the line to be, and what it is
Seen in the wild
Sorting applicants at the shortlisting stage, which is named territory rather than a grey area.
LinkedIn RecruiterPasting CVs into a general assistant to rank them, informally and without an assessment.
ChatGPTA system used inside an education institution, where the setting itself is named.
Sana (Workday)
Common misconceptions
People assume
It is about advanced or autonomous technology.
In fact
It is about what the output affects. A simple tool ranking job applicants is in named territory, and a far more sophisticated one producing marketing copy is not, because the test is consequence rather than capability.
People assume
A tool is either high risk or it is not.
In fact
The classification attaches to the use rather than the product. The same software can sit in different tiers depending on what it is pointed at, which means the assessment belongs to a deployment and needs revisiting when that changes.
Questions
- Does using an assistant to help with hiring count?
- Employment and the management of workers are named as examples of the category, so this is not an edge case anybody has to argue about. Whether a specific use falls inside it is a legal judgement on your facts, but the territory is explicitly identified rather than debatable.
- What does the category actually require?
- Risk assessment and mitigation, data quality chosen to reduce discriminatory outcomes, logging so results can be traced, documentation, clear information to whoever deploys it, human oversight, and robustness, security and accuracy. All of it is meant to be in place before deployment rather than added afterwards.
- Is most of what we use covered by this?
- Almost certainly not. The framework has four levels and ordinary business use sits in the lower two, which is the honest answer. The reason the category matters is that the exceptions are the specific things organisations most want to automate.
Key takeaways
- Four levels; most ordinary use sits in the lower two.
- The test is what the output affects, not how advanced the tool is.
- Employment, worker management and access to essential services are named.
- It attaches to a use, not a product, so it changes when the use does.
Tools that use this
- LinkedIn Recruiter
Shortlisting applicants sits in named territory.
- ChatGPT
Ranking CVs informally, with no assessment behind it.
- Sana (Workday)
Use inside an education institution, a named setting.
Last checked August 2026