The European Commission today finalized its official template for AI training data transparency, providing the definitive framework for compliance with the EU AI Act.

What’s confirmed today (July 24, 2025):

  • Final template after extensive stakeholder consultation (430+ responses)
  • Comprehensive disclosure requirements across all training phases
  • Balanced approach protecting trade secrets while ensuring transparency
  • Clear implementation timeline with enforcement starting August 2026

Key disclosure requirements:

  • General Information: Model identification, modalities, training data size ranges, linguistic characteristics
  • Data Sources: Public datasets, licensed content, web-scraped data (top 10% of domains), user data, synthetic/AI-generated training data
  • Legal Compliance: Copyright reservation, respect, illegal content removal measures

Critical timeline:

  • August 2, 2025: Rules take effect for new models
  • August 2, 2026: EU enforcement begins
  • August 2, 2027: Compliance deadline for existing models

Time to prepare.

Source: https://digital-strategy.ec.europa.eu/en/library/explanatory-notice-and-template-public-summary-training-content-general-purpose-ai-models

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