Humanfrog Lab

EU AI Act risk categories: where does your AI system fall?

The EU AI Act (Regulation (EU) 2024/1689) is the first comprehensive law on artificial intelligence in the world. As a regulation it applies directly in all member states. It sorts AI systems into four EU AI Act risk categories: prohibited practices, high-risk systems, systems with transparency obligations and systems with minimal risk.

Your obligations depend on the category and on your role: whether you develop the system (provider) or use it in your work (deployer). The prohibitions have applied since February 2025 and most other rules apply from August 2026. Use the tool below to classify your system.

Which EU AI Act risk category does your system fall into?

Describe one AI system you develop or use. The tool walks you through the key questions of the regulation and shows the likely risk category and obligations.

Before you start, pick one specific AI system, for example a customer chatbot, a CV screening tool or a failure prediction model. The questionnaire has up to 8 steps, depending on your answers.

Step of

Likely risk class

For all classes: since 2 February 2025, providers and deployers must ensure a sufficient level of AI literacy among their staff (Article 4).

Application timeline

DateWhat starts to apply
2 February 2025Prohibited practices and AI literacy
2 August 2025Obligations for general-purpose AI models, governance, penalties
2 August 2026Most provisions, including Annex III high-risk systems and transparency obligations
2 August 2027High-risk systems in products covered by Annex I

With the "digital omnibus" package, the European Commission has proposed postponing some deadlines for high-risk systems. Check the current state of the legislative process before you plan.

Fines

  • prohibited practices: up to EUR 35 million or 7 % of worldwide annual turnover
  • breaches of other obligations: up to EUR 15 million or 3 % of turnover
  • incorrect, incomplete or misleading information to authorities: up to EUR 7.5 million or 1 % of turnover

The higher amount applies; for SMEs and start-ups, the lower one.

This tool is informational and does not replace legal advice. The classification is simplified; for a final assessment, read Regulation (EU) 2024/1689 and the European Commission guidelines.

The calculation runs in your browser. Your answers are only sent if you submit the contact form below.

What the EU AI Act regulates

The EU AI Act (Regulation (EU) 2024/1689) regulates the development, placing on the market and use of artificial intelligence systems in the European Union. Because it is a regulation, it applies directly in all member states and does not need to be transposed into national law. Member states must designate national supervisory authorities and set rules on penalties, so follow the national authority in each country where you operate.

The regulation is risk-based: the more a system can affect people’s health, safety and fundamental rights, the more obligations apply. It covers providers and deployers in the EU, and also providers outside the EU where the output of their systems is used in the EU. Military and defence use, scientific research and purely personal, non-professional use are among the exclusions. Check the category of your system with the tool on this page.

The four EU AI Act risk categories

CategoryExamplesConsequence
Prohibited practices (Article 5)Social scoring, manipulative techniques, emotion recognition of employees, untargeted scraping of facial imagesUse is not allowed
High-risk systems (Article 6, Annexes I and III)Ranking job candidates, credit scoring, safety components of medical devices or machineryExtensive requirements for providers and deployers
Limited risk: transparency (Article 50)Chatbots, image and text generation, deepfakesInforming users and labelling content
Minimal riskSpam filters, inventory forecasting, product recommendationsNo specific obligations apart from AI literacy

High-risk systems under Annex III are those used in the areas of biometrics, critical infrastructure, education, employment and workers management, access to essential public and private services (for example credit scoring and risk assessment and pricing for life and health insurance), law enforcement, migration and border control, and the administration of justice and democratic processes.

A system in an Annex III area is not high-risk if it does not pose a significant risk, for example because it performs only a narrow procedural or preparatory task. This exception does not apply if the system profiles natural persons. The provider must document such an assessment.

Provider or deployer: who is responsible for what

Obligations depend on your role. A provider develops an AI system or places it on the market or into service under its own name or trademark. A deployer uses the system in the course of its professional activity. Most European companies will be deployers, for example when using a recruitment tool developed by another provider.

High-risk systemProviderDeployer
Risk management and data qualityyesrelevance of the input data it controls
Technical documentation and logsprepares documentation, enables loggingkeeps logs, generally for at least six months
Human oversightdesign that enables itperformed by trained persons
Conformity assessment, CE marking, registrationyespublic bodies register their use
Information dutiesinstructions for useinforms employees and people the system helps decide about
Fundamental rights impact assessmentnopublic bodies, providers of public services, credit scoring and insurance

A deployer becomes a provider if it puts its own name or trademark on a high-risk system, makes a substantial modification to it, or changes its intended purpose so that it becomes high-risk. This matters when adapting off-the-shelf solutions to your own needs.

Practical examples

  • A customer support chatbot built on a large language model: generally limited risk. You must tell users they are interacting with AI, unless that is obvious.
  • A CV screening or candidate scoring tool: a high-risk system in the employment area. As deployer, the company must ensure human oversight, keep logs and inform candidates and workers’ representatives.
  • Predicting machine failures from sensor data: generally minimal risk, unless the system is a safety component of a machine covered by Annex I legislation.
  • Credit scoring of natural persons: a high-risk system. Detecting financial fraud is expressly excluded.
  • Analysing employee emotions from video or voice calls: a prohibited practice in the workplace, except for medical or safety reasons.

General-purpose AI models

Large language models and other general-purpose AI (GPAI) models have specific rules that apply from 2 August 2025. Model providers must prepare technical documentation, provide information to providers who integrate the model into their systems, maintain a copyright compliance policy and publish a summary of the content used for training. Additional requirements apply to the most capable models with systemic risk.

A company that uses an existing model through an API or embeds it in its own application is generally not a provider of a general-purpose model. It can, however, be a provider or deployer of the AI system it built on top of that model, and the category of that system depends on its intended purpose.

Deadlines and fines

DateWhat starts to apply
1 August 2024The regulation enters into force
2 February 2025Prohibited practices and the AI literacy obligation
2 August 2025Rules for general-purpose AI models, governance and penalties
2 August 2026Most provisions, including Annex III high-risk systems and transparency obligations
2 August 2027High-risk systems that are safety components of Annex I products

With a package known as the Digital Omnibus, the European Commission proposed postponing some deadlines for high-risk systems. Because the legislative process is ongoing or may already be complete, check the current status on the European Commission website before you plan.

Fines reach EUR 35 million or 7% of worldwide annual turnover for prohibited practices, EUR 15 million or 3% for breaches of other obligations and EUR 7.5 million or 1% for supplying incorrect information to authorities. For SMEs and start-ups the lower of the two amounts applies.

How to prepare

  1. Inventory of AI systems. Collect all AI systems and tools you develop or use, including those that departments adopted on their own.
  2. Classification. Classify each system with the tool above and document the result.
  3. Literacy. Prepare training for staff who use AI and an internal acceptable-use policy.
  4. High-risk systems. Ask suppliers for conformity documentation, assign people responsible for human oversight and arrange log retention.
  5. Governance. Link the regulation requirements with your existing data protection and information security processes.

Humanfrog helps companies plan and deliver AI solutions designed for compliance from the start, with proper security, access control and logging. To review a specific use case, talk to us.

Frequently asked questions

When does the EU AI Act apply?
The regulation entered into force on 1 August 2024 and applies in stages: prohibitions and the AI literacy duty from 2 February 2025, rules for general-purpose AI models from 2 August 2025, most provisions from 2 August 2026, and rules for high-risk systems embedded in Annex I products from 2 August 2027. The European Commission has proposed postponing some deadlines (the Digital Omnibus), so check the current status.
Does the AI Act apply to companies that only use AI?
Yes. The regulation distinguishes providers, who develop a system or place it on the market, from deployers, who use it in their professional activity. Deployers have fewer obligations but are not exempt. They must ensure sufficient AI literacy among staff and, for high-risk systems, human oversight, log retention and information for the people affected.
Does the AI Act apply to non-EU companies?
Yes, in many cases. It applies to providers placing AI systems on the EU market regardless of where they are established, and to providers and deployers outside the EU where the output of the system is used in the EU. Companies based outside the EU may need an authorised representative in the Union.
Is ChatGPT or a similar chatbot high-risk?
Not in itself. Large language models are general-purpose AI models, with specific rules for their providers. The category of your system depends on its intended purpose. A customer support chatbot mainly carries a transparency obligation, while a system that ranks job candidates is generally high-risk, regardless of which model it uses.
Which AI practices are prohibited?
Among others: manipulative techniques that cause significant harm, exploiting vulnerabilities, social scoring, untargeted scraping of facial images from the internet or CCTV to build facial recognition databases, emotion recognition in the workplace and in education (except for medical or safety reasons), and biometric categorisation by sensitive attributes. The full list is in Article 5 of the regulation.
What are the fines under the AI Act?
Up to EUR 35 million or 7% of worldwide annual turnover for prohibited practices, up to EUR 15 million or 3% for breaches of other obligations and up to EUR 7.5 million or 1% for supplying incorrect information to authorities. The higher amount applies, except for SMEs and start-ups, where the lower amount applies.
What does the AI literacy obligation mean?
Under Article 4, providers and deployers must take measures to ensure that their staff and others using AI systems on their behalf have a sufficient understanding of how the systems work, what they can do and what the risks are. It has applied since 2 February 2025 to all risk categories.
When does a deployer become a provider?
If it puts its own name or trademark on a high-risk system, makes a substantial modification to it, or changes its intended purpose so that it becomes high-risk. It then takes on the obligations of a provider (Article 25).