What actually changed on 2 August

The obligations on general-purpose AI model providers have been law since 2 August 2025. What arrived on 2 August 2026 is the enforcement machinery: the European Commission, acting through its AI Office, may now exercise supervision and enforcement powers against those providers. The one-year gap was deliberate, an adjustment period written into the regulation rather than a delay. It has now expired.

The powers are set out plainly. Article 91 lets the Commission request technical documentation and any other necessary information, and providers are on the hook for supplying anything incorrect, incomplete or misleading. Article 92 lets the Commission carry out evaluations of a model, including through independent experts and members of the scientific panel. Article 93 lets the Commission require a provider to take compliance steps, to implement risk mitigation where systemic risk is identified, and to restrict the making available on the market, withdraw or recall the model. Article 101 sets the fines.

The amendments known as the AI omnibus entered into force on 27 July, days before the enforcement date. The sequence matters for anyone reading the text: the rules being enforced from this month are the amended rules, not the 2024 version many internal compliance memos were written against.

The fine is the headline, the withdrawal is the risk

Why it matters: almost every summary of this date leads with the money, 3 percent of worldwide annual turnover or 15 million euros, whichever is higher. That is a real number and it is genuinely large for a frontier lab. It is also the power least likely to change anything in your operation, because it is levied on the provider's balance sheet. You do not pay it, and it does not interrupt you.

Article 93 is the one that reaches into your stack. The Commission can require that a model be restricted on the market, withdrawn or recalled. There is no carve-out for the fact that a European company has already built a product on top of it. If the model your document pipeline, your support triage or your code assistant depends on is withdrawn from the EU market, the enforcement action is against your supplier and the outage is yours.

The asymmetry: the provider has lawyers, notice, a hearing and the option to negotiate remediation. You have a service that stops. Nothing in the regulation obliges the provider to give you warning, and nothing in a standard enterprise agreement obliges them to make you whole for a regulatory withdrawal, because that category of event did not exist when most of those agreements were signed.

The access power that has no confidentiality defence

Article 92 deserves separate attention because it breaks an assumption that has held for years. The Commission may evaluate a general-purpose AI model, and it may use independent experts to do so. Under Article 101 the grounds for a fine include refusing to provide access to a model for evaluation. A provider that declines on trade-secret grounds is not protected by that refusal, it is exposed by it.

Read that from the buyer's side. It means the models sold into the European market are now models that a regulator can compel access to, and it means a provider's willingness to operate in Europe is a statement about its willingness to be evaluated. Some providers will accept that trade, and the ones that do will be measurably more durable suppliers. Some will conclude that the European market is not worth the exposure, and that decision will not be announced as a compliance decision. It will look like a region being quietly dropped from a product page.

The transitional rule is the detail most operators miss. Providers of models placed on the market before 2 August 2025 have until 2 August 2027 to comply. A great many production systems in Europe are pinned to an older model version for reproducibility, and those versions sit in the transitional class. The pinning that protects your outputs also sets your compliance clock a year later than you think.

What to do with the next twelve months

Treat model availability as a supply question rather than a service-level one. The practical test is simple: if your primary model became unavailable in the EU on thirty days notice, what breaks, how long does the switch take, and who signs off on the output difference? Most teams can answer the first part and almost none can answer the third, because the validation work that made the current model acceptable was never designed to be repeated in a hurry.

The concrete step: open the AI clauses in your two largest vendor agreements and search for the word withdrawal. If it appears only in the context of you terminating, the contract does not cover this. What you want is a continuity obligation that names regulatory action as a trigger, plus a commitment to maintain an equivalent model available to EU customers. That is a negotiable term right now, in the window where providers want European enterprise logos, and it will be much harder to obtain after the first enforcement action makes the risk legible to everyone.

Then diary 2 August 2027. If any part of your production stack depends on a model version placed on the market before August 2025, that is the date its transitional protection ends, and it is the date to have a validated alternative already tested rather than merely identified. A year is enough time to do this calmly. It is not enough time to do it twice.