Enforcement of Chapter V under the EU AI Act
This page aims to provide an overview of the EU AI Act’s enforcement provisions relating to Chapter V, namely the provisions that impose obligations on providers of general-purpose AI (GPAI) models. It also aims to explore the role that other actors can play in the enforcement of the AI Act. Summary Coming up in this […]
What this rule actually says
The EU AI Act has enforcement rules for "general-purpose AI" (GPAI) models—basically, powerful AI systems that can do many different tasks, like Claude or GPT-4. If building on top of these models, there are now formal obligations on who's responsible for what breaks, and the EU has teeth to enforce it. This matters because it clarifies liability chains: if an AI medical scribe goes wrong, is it the foundation model maker's fault, the builder's fault, or both?
Who it applies to
- If building in the EU or selling to EU users: applies immediately. Non-EU founders selling into the EU also need to comply.
- If using or fine-tuning GPAI models (like building on OpenAI's API, Anthropic's models, or open-source LLMs): this likely applies to you.
- If building niche AI tools (hiring assistants, medical scribes, support chatbots): you're probably a "provider" or "deployer" under this rule, depending on whether you're offering the model itself or just using it.
- If collecting user data to train or improve your system: stricter rules apply. If just running inference without logging user data back into training, lighter touch.
- If operating in high-risk sectors (medical diagnosis, loan decisions, hiring): higher scrutiny; general support chatbots face lower bar.
What founders need to do
- Audit your supply chain (2–3 days): Document which GPAI model(s) you depend on and whether the vendor has published their Chapter V compliance docs. Ask your vendor directly if unclear.
- Document your role (1 day): Write down: Are you the provider (building the model), a deployer (using it on users' behalf), or a reseller? The EU Act assigns different obligations to each.
- Review your data practices (3–5 days): If you're logging user inputs/outputs for retraining, you now need explicit user consent and transparency docs. If inference-only, document that.
- Update terms and privacy policy (2–3 days): Add language explaining you're using GPAI, what data you collect, and any known limitations (hallucinations, bias, etc.).
- Monitor enforcement updates (ongoing): The EU is still finalizing detailed guidance. Subscribe to official EU AI Act updates and check your vendor's compliance statements quarterly.
Bottom line
If you're in the EU or selling to EU users, and you're using GPAI models: monitor now, audit your vendor's compliance in the next 2–4 weeks, and update your docs—don't wait for an enforcement action.