> For the complete documentation index, see [llms.txt](https://www.headlesslaw.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.headlesslaw.com/ai-act/annexes/annex-xii.md).

# Annex XII

*In force · Consolidated version of 27 July 2026 · Checked against EUR-Lex on 30 Sep 2026 ·* [*Official source*](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02024R1689-20260727)

#### Transparency information referred to in Article 53(1), point (b) — technical documentation for providers of general-purpose AI models to downstream providers that integrate the model into their AI system

The information referred to in Article 53(1), point (b) shall contain at least the following:

**1.** A general description of the general-purpose AI model including:

**(a)** the tasks that the model is intended to perform and the type and nature of AI systems into which it can be integrated;

**(b)** the acceptable use policies applicable;

**(c)** the date of release and methods of distribution;

**(d)** how the model interacts, or can be used to interact, with hardware or software that is not part of the model itself, where applicable;

**(e)** the versions of relevant software related to the use of the general-purpose AI model, where applicable;

**(f)** the architecture and number of parameters;

**(g)** the modality (e.g. text, image) and format of inputs and outputs;

**(h)** the licence for the model.

**2.** A description of the elements of the model and of the process for its development, including:

**(a)** the technical means (e.g. instructions for use, infrastructure, tools) required for the general-purpose AI model to be integrated into AI systems;

**(b)** the modality (e.g. text, image, etc.) and format of the inputs and outputs and their maximum size (e.g. context window length, etc.);

**(c)** information on the data used for training, testing and validation, where applicable, including the type and provenance of data and curation methodologies.


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