A General Purpose AI Model (GPAIM) is defined under the AI Act as an AI model “trained with a large amount of data using self-supervision at scale, that displays significant generality and is capable of competently performing a wide range of distinct tasks regardless of the way the model is placed on the market and that can be integrated into a variety of downstream systems or applications.”
AI models used for research, development or prototyping activities before they are placed on the market are exempted from the definition.
According to the non-binding recitals to the Act, AI models with at least a billion of parameters and trained with a large amount of data using self-supervision at scale should be considered to display the generality and competence to bring them into scope of the Act.
The European Commission has also published “Guidelines on the scope of the obligations for general-purpose AI models established by AI Act” which are not legally binding but set out the Commission’s interpretation of the definition of GPAIM and the Act’s obligations.
These Guidelines state that the Commission will consider as an indicative criterion for a model to be considered a general-purpose AI model if the training compute used to train the model is greater than 10²³ FLOPs and the model can generate language (whether in the form of text or audio), text-to-image, or text-to-video.
The Guidelines also present the Commission’s view on when the downstream modification of a GPAIM will result in the modifier being considered the provider. Not all modifications will trigger the “provider” classification. Only those modifications that lead to a significant change in the model’s generality, capabilities, or systemic risk, will qualify. The indicative criterion used by the Commission for when this occurs is that the training compute used for the modification is greater than a third of the training compute of the original model.
If this information is not available, the Guidelines state that the threshold relied upon by the Commission will be the following: if the original model is a GPAIM with system risk (see below), the threshold is replaced with a third of the threshold for a model being presumed to have high-impact capabilities (i.e. currently 10²⁵ FLOPS). In other cases, the threshold is a third of 10²³ FLOPS. These thresholds are not legal presumptions.