What the EU AI Act actually requires (and of whom)
The EU AI Act is Regulation 2024/1689, published in the Official Journal of the EU on 12 July 2024 and in force from 1 August 2024. As a Regulation (not a Directive) it is directly applicable in all 27 EU member states without national transposition. Full text at https://eur-lex.europa.eu/eli/reg/2024/1689/oj. It binds: providers placing AI systems on the EU market, deployers using AI systems in the EU, importers and distributors of AI systems, and providers of general-purpose AI models whose output is used in the EU — regardless of where the provider is established. Extraterritorial reach is explicit.
**Risk tiers.** The Act categorizes AI systems by risk. **Prohibited** (Article 5): unacceptable-risk practices banned outright — including social scoring by public authorities, real-time remote biometric identification in public spaces (with narrow exceptions), emotion recognition in workplaces and schools, and untargeted scraping of facial images for facial-recognition databases. Effective 2 February 2025. See EU AI Act Prohibited Uses for the full list.
**High-risk** (Article 6 + Annex III): AI systems used in critical infrastructure, educational/vocational training, employment + worker management, access to essential services (credit, insurance), law enforcement, migration/asylum/border control, administration of justice and democratic processes. High-risk systems must comply with conformity assessment, technical documentation, data governance, transparency, human oversight, accuracy/robustness/cybersecurity requirements. Most high-risk obligations apply from 2 August 2026; Annex II 'product safety' high-risk applies from 2 August 2027.
**Limited risk** (Article 50): transparency obligations — chatbots must disclose AI-generated nature, AI-generated/manipulated content must be labeled (including text published to inform on matters of public interest), synthetic audio/video (deepfakes) must be labeled. Applies from 2 August 2026.
**Minimal risk**: no additional obligations beyond existing EU law (data protection, consumer protection, product liability). Most AI applications fall here.
**General-Purpose AI (GPAI)** — separate axis from risk tiers, addressed in Chapter V (Articles 51-56). All GPAI providers must: maintain technical documentation, publish a sufficiently-detailed summary of training data (the 'training data summary template' was published by the AI Office in 2025), comply with EU copyright law (including text-and-data-mining opt-outs under Directive 2019/790), and provide downstream-integrator information. GPAI models with **systemic risk** (designated either by training compute threshold of 10^25 FLOPs or by Commission designation) face additional obligations: model evaluations including adversarial testing, systemic-risk assessment and mitigation, serious-incident reporting to the AI Office, and adequate cybersecurity. GPAI obligations applied from 2 August 2025.