EU regulation

EU AI Act

The European regulation for artificial intelligence. Obligations differ per risk category; below are the categories with what they mean and when they apply, each traceable to the legal text.

Risk categories and obligations

Prohibited practice (Art. 5)
This use is outright banned in the EU — it cannot be mitigated, only stopped. The highest fines in the regulation.
High risk (Annex III/I)
The heaviest set of duties: risk management, data governance, documentation, human oversight, conformity assessment.
GPAI model (Chapter V)
A dedicated regime for providers of general-purpose AI models; extra duties for systemic risk (training above 10^25 FLOP).
GPAI in use
You build on a third-party AI model (such as GPT, Claude or Gemini). The GPAI regime targets that model's provider — but you must be able to rely on their compliance (vendor assessment) and, where outputs reach the public, follow the transparency duty (Art. 50). Note: if you substantially modify the model and place it on the market under your own name, you may become a provider yourself.
Transparency (Art. 50)
A duty to make AI recognisable: disclose chatbots, mark synthetic output machine-readably, label deepfakes.
AI literacy (Art. 4)
Anyone developing or deploying AI must ensure a sufficient level of AI literacy among staff.
Minimal risk
Most AI applications fall here; voluntary codes of conduct are encouraged.

Deadlines

Prohibited practice (Art. 5)in force since 2 February 2025
High risk (Annex III/I)Annex III: 2 December 2027 (was 2 August 2026); Annex I products: 2 August 2028 (was 2 August 2027)
GPAI model (Chapter V)in force since 2 August 2025; AI Office enforces from 2 August 2026
GPAI in usethe heavy GPAI duties sit with the model provider; for you, vendor assurance and transparency apply
Transparency (Art. 50)applies from 2 August 2026; only Article 50(2) marking for systems placed on the market before that date applies from 2 December 2026
AI literacy (Art. 4)in force since 2 February 2025
Minimal riskno specific AI Act obligations beyond AI literacy

Full detail, sources and changelog: AI Act deadlines — verified against the source →

Official text, structured by article

Browse all 113 articles, 180 recitals and 13 annexes from the official EUR-Lex text. Each page carries its source version and keeps proposed changes separate from current law.

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