AI Governance & Regulation: EU AI Act, NIST AI RMF and ISO/IEC 42001EU AI Act deep dive · Lesson 5 of 17

General-purpose AI models and the codes of practice

Article · 15 min · 9 min lecture

Video lecture

General-purpose AI models and the codes of practice

13 chapters · about 9 min · full transcript

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Chapter 1 of 13

General-purpose AI models

  • Rules for model developers
  • Your leverage in due diligence
  • When building on a model changes your role

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Every chapter is scripted and ready. Browse the chapters and read the full transcript now — the video will appear here when it’s published.

Chapters

Why GPAI rules matter to people who don't train models

The obligations for general-purpose AI (GPAI) models in Articles 51 to 56 bind the companies that develop foundation models: OpenAI, Anthropic, Google, Meta, Mistral and others. So why should an agency or SME care? Because these rules determine what documentation and assurances you can demand from the models underneath your tools, and because fine-tuning or building on a model can, in some cases, create obligations for you.

Key definitions

  • GPAI model: a model trained with a large amount of data, displaying significant generality and able to competently perform a wide range of distinct tasks, which can be integrated into downstream systems. Large language models and large image or video generation models are the typical examples.
  • GPAI system: an AI system based on a GPAI model, such as a chatbot app.
  • GPAI model with systemic risk: a model with high-impact capabilities. A model is presumed to have them when the cumulative compute used for training exceeds 10^25 floating-point operations; the Commission can also designate models based on other criteria.

Obligations for all GPAI model providers (Article 53)

  1. Draw up and keep up to date technical documentation of the model, including training and testing process and evaluation results, for the AI Office and national authorities on request.
  2. Provide information and documentation to downstream providers who integrate the model, so they understand its capabilities and limitations and can meet their own obligations.
  3. Put in place a policy to comply with EU copyright law, in particular to identify and respect reservations of rights (opt-outs from text and data mining) expressed under the Copyright Directive.
  4. Publish a sufficiently detailed public summary of the content used for training, using the template provided by the AI Office.

Providers of models released under free and open-source licenses with publicly available weights are exempt from items 1 and 2, unless the model has systemic risk. Copyright policy and the training summary still apply.

Extra obligations for systemic-risk models (Article 55)

  • Perform model evaluations, including adversarial testing (red-teaming).
  • Assess and mitigate systemic risks at Union level.
  • Track, document and report serious incidents to the AI Office without undue delay.
  • Ensure adequate cybersecurity for the model and its physical infrastructure.

Timeline and enforcement

  • GPAI obligations have applied since 2 August 2025.
  • Models placed on the market before that date must comply by 2 August 2027.
  • The Commission's enforcement powers over GPAI providers, including fines up to EUR 15 million or 3% of worldwide turnover, apply from 2 August 2026.

The General-Purpose AI Code of Practice

Published by the Commission on 10 July 2025 after a multi-stakeholder drafting process, the GPAI Code of Practice is a voluntary tool that providers can sign to demonstrate compliance. It has three chapters:

ChapterApplies toContent
TransparencyAll GPAI providersA model documentation form covering what downstream providers and authorities need
CopyrightAll GPAI providersCopyright policy, respecting robots.txt and other machine-readable opt-outs, mitigating infringing outputs, complaint handling
Safety and securitySystemic-risk providersRisk assessment framework, evaluations, incident reporting, cybersecurity

Most major model developers signed; some signed only certain chapters or declined. Signatory status is a useful due-diligence data point, but not a guarantee. Check the Commission's current list rather than relying on news reports.

When could you become a GPAI provider?

If you fine-tune or modify a GPAI model and place the result on the market, you may become a provider of a GPAI model for the modification. Commission guidelines published in July 2025 explain that obligations for modifiers are generally limited to the modification, and set an indicative compute threshold for when a modification is significant enough to count. For typical business fine-tuning (a small adapter trained on your brand voice and used internally), you are unlikely to be a GPAI provider, but document your reasoning.

Much more common: you build a system on top of a model, for example a customer-support chatbot. You are then the provider (or deployer) of an AI system, not of a GPAI model. Your system-level duties (for example Article 50 transparency) still apply.

Worked example: choosing a model for a Riyadh fintech's marketing assistant

The team compares three model vendors. Due-diligence table:

QuestionVendor AVendor BVendor C
Signed GPAI Code of Practice (which chapters)?All threeTransparency and copyrightNot signed
Public training content summary available?YesYesNot found
Downstream documentation (model card, usage policy, limitations)DetailedDetailedMinimal
Data processing terms: training on customer data off by default?Yes (business tier)YesUnclear
Regional data residency optionsEU, USEU, US, Middle EastUS

They shortlist A and B and record why C was rejected. That record is valuable evidence for clients and for their own AI policy.

Hands-on: request list for model and platform vendors

Subject: AI model documentation request (EU AI Act Article 53 / GPAI Code of Practice)

Please provide or link:
1. Model documentation for downstream providers (capabilities, limitations, intended and prohibited uses, evaluation results).
2. The public summary of training content for the model(s) we use.
3. Your copyright policy and how you handle rights reservations and infringing-output complaints.
4. Whether you have signed the GPAI Code of Practice, and which chapters.
5. Whether any model we use is classified as a GPAI model with systemic risk, and a summary of your safety and security framework.
6. Your terms on training with our inputs and outputs, retention periods, and data location.
7. How you notify customers of model deprecations and significant behavior changes.

Pitfalls

  • Assuming open-weight models come with no documentation duties at all.
  • Treating a model's "compliance" as covering your system. Your chatbot's disclosure duty is yours.
  • Forgetting that model versions change; tie due diligence to specific model versions and review on upgrades.

Key takeaways

  • GPAI providers must keep technical documentation, inform downstream providers, maintain a copyright policy and publish a training content summary.
  • Models above 10^25 FLOPs of training compute are presumed to have systemic risk and face evaluation, mitigation, incident and cybersecurity duties.
  • GPAI obligations applied from 2 August 2025; legacy models must comply by 2 August 2027; Commission fines apply from 2 August 2026.
  • The July 2025 Code of Practice (transparency, copyright, safety and security) is a due-diligence signal; your system-level duties remain yours.

Check your understanding

Quick questions to lock in the lesson. They don’t count towards your certificate.

  1. Which obligation applies to all GPAI model providers, including open-source ones without systemic risk?
  2. A company builds a customer chatbot on a major vendor's model. Who must ensure users are told they are talking to AI?
  3. What does signing the GPAI Code of Practice indicate?

Put it into practice

Send the seven-point documentation request to your primary model or AI platform vendor. File the response against the specific model version and set a review reminder for the next model upgrade.

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