Providers of general-purpose AI models have a particular role and responsibility in the AI value chain, as the models they provide may form the basis for a range of downstream systems, often provided by downstream providers that necessitate a good understanding of the models and their capabilities, both to enable the integration of such models into their products, and to fulfil their obligations under this or other regulations. Therefore, proportionate transparency measures should be foreseen, including the drawing up and keeping up to date of documentation, and the provision of information on the general purpose AI model for its usage by the downstream providers. Technical documentation should be prepared and kept up to date by the general purpose AI model provider for the purpose of making it available, upon request, to the AI Office and the national competent authorities. The minimal set of elements contained in such documentations should be outlined, respectively, in Annex (XY) and Annex (XX). The Commission should be enabled to amend the Annexes by delegated acts in the light of the evolving technological developments.