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Article 55 binds providers of general-purpose AI models with systemic risk: model evaluations, adversarial testing, serious incident reporting, cybersecurity. The 10^25 FLOP compute threshold triggers classification. These obligations have applied since 2 August 2025, with Commission enforcement powers in place since August 2026.
Article 55 sits in the GPAI provider lane, OpenAI, Anthropic, Google, Mistral, Meta. Most readers of this site are deployers, not GPAI providers, but understanding Article 55 matters because it shapes what GPAI providers can offer, what documentation they must hand down to downstream deployers via Article 53(1)(b), and what serious-incident reporting cascades when something goes wrong. The voluntary GPAI Code of Practice covers most of the operational detail. The Chapter V GPAI obligations have applied since 2 August 2025, the Commission has held its enforcement powers since August 2026, and the Digital Omnibus did not change that.
Article 55 of the EU AI Act binds providers of general-purpose AI models with systemic risk: model evaluations, adversarial testing, serious incident reporting under Article 55(1)(c), and cybersecurity. The 10^25 FLOP compute threshold triggers classification. The Chapter V GPAI obligations have applied since 2 August 2025 and the Commission has held its enforcement powers since August 2026. The Digital Omnibus (Regulation (EU) 2026/1744) did not change this regime.
Read articleA practical guide to AI incident response under the EU AI Act. 6-step response plan, Article 26(5) reporting obligations, whistleblower protections, and real incident examples.
Read articleThe Digital Omnibus, Regulation (EU) 2026/1744, was published on 24 July 2026 and entered into force on 27 July 2026. Annex III standalone systems now apply from 2 December 2027, Annex I embedded systems from 2 August 2028. Article 4 literacy and the Article 5 prohibitions stay live: Article 4 was reworded to require measures that support the development of AI literacy, and the new Article 5 prohibitions apply from 2 December 2026.
Read articleEU AI Act penalty tiers explained. Article 99 fines up to EUR 35 million or 7% of turnover, enforcement mechanisms, civil liability, and how to avoid penalties. Series finale.
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