What applies
From 2 August 2026 the transparency obligations of Article 50 of Regulation (EU) 2024/1689 apply. Anyone publishing content made or edited with AI must disclose it in a way a person can see.
The delays announced in May 2026 concerned high-risk systems. Article 50 was not postponed.
Source: Κανονισμός (ΕΕ) 2024/1689, άρθρο 50 · άρθρο 113
Who is covered
Two roles. Providers of AI systems, who must mark outputs so they are machine-readable. And deployers — any business that uses AI to make content and publishes it.
The second group is the broad one. It is not limited to people: it covers images resembling real objects, places or events. A photo of a room, a dish or a product can fall within scope.
Source: Κανονισμός (ΕΕ) 2024/1689, άρθρο 50 παρ. 2 και παρ. 4
How big is the fine
The Regulation provides for administrative fines up to €15,000,000 or up to 3% of worldwide annual turnover, whichever is higher — but for small and medium-sized enterprises Article 99(6) says the opposite.
But for small and medium-sized enterprises, the lower of the two applies. For a business with €2 million turnover the ceiling is roughly €60,000 — not €15 million.
A serious amount. Not the headline number.
Source: Κανονισμός (ΕΕ) 2024/1689, άρθρο 99 παρ. 4 στοιχ. ζ΄ και άρθρο 99 παρ. 6
Who supervises in Greece
Law 5321/2026 designated the Hellenic Data Protection Authority as central market surveillance authority for the AI Act. EETT was designated as notifying authority.
The law allows the authorities to issue warnings and reprimands, not only fines.
Source: ν. 5321/2026, ΦΕΚ Α΄ 114/20.7.2026
What counts in your favour
The Regulation provides that when a penalty is calculated, documented compliance and cooperation with the authority are taken into account.
In practice: the difference between a warning and a fine is usually whether you can show you had a process.
Source: Κανονισμός (ΕΕ) 2024/1689, άρθρο 99 παρ. 7
What is not needed
Content published before 2 August 2026 does not require retroactive labelling. The Commission encourages it but does not require it.
Public bodies already using AI systems have until 31 December 2026 to comply.
Source: Κώδικας Δεοντολογίας για τη Διαφάνεια Περιεχομένου ΤΝ, 10.6.2026 · ν. 5321/2026