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EU starts enforcing its AI Act on 2 August, and chatbots must now say they are AI

The AI Office can now act against providers of general-purpose AI models. Deepfakes must be labelled, and AI-generated content must carry machine-readable marks.

Catching up: the original came out on . This story was published later, when the site opened.

EU enforcement of the AI Act begins, and chatbots must disclose they are AI

Grade 1 · Primary

Source: European Commission

What changed
From 2 August 2026 the EU's AI Office and national authorities began enforcing the AI Act, and new transparency rules on chatbots and AI-generated content applied.
Who it affects
Providers of general-purpose AI models, AI systems used in the EU, and anyone deploying chatbots or publishing AI-generated or altered content.
What it does not tell you
How strictly it will be enforced. That depends partly on member states designating and resourcing their national authorities.

The full story Check the source

The European Commission said on 31 July that its AI Office and national authorities would begin enforcing the EU's Artificial Intelligence Act on 2 August 2026 [1].

On the same date, transparency rules started to apply. Chatbots and other interactive AI systems must tell users they are dealing with AI, deepfakes must be labelled, and AI-generated or altered content must carry machine-readable marks [1].

The Commission published a first list of more than 180 organisations that have signed its code of practice on the transparency of AI-generated content [1].

What it covers

Providers of general-purpose AI models, which must document their models, have a copyright policy and publish a summary of their training content. The most advanced models, which may pose systemic risks, face extra obligations [1].

Enforcement also began for the Act's bans on the most harmful AI practices, such as systems that manipulate people or unfairly score them [1].

The AI Office enforces the rules for AI systems from the same provider as the underlying model, and for systems inside very large platforms and search engines. National authorities handle other AI systems [1].

What it does not tell you

How strict enforcement will be. The Commission says it will depend on member states properly designating and resourcing their national authorities [1].

Sources and their grades

  1. European Commission, Commission starts enforcing AI Act rules and new transparency requirements on 2 August. Read 29 September 2026. Grade 1 · Primary Press release IP/26/1714, Brussels, 31 July 2026.

A grade says how much weight a source will take, from 1 (a body that can compel an answer and has nothing to sell) to 5 (somebody describing what they sell, or themselves). The standard sets out what each grade may be used for.

Filed under AI, EU, Regulation

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