IberAuTexTification: Automated Text Identification on Languages of the Iberian Peninsula

The IberAuTexTification competition focuses on authorship identification in six languages of the Iberian Peninsula (Spanish, Catalan, Basque, Galician, Portuguese, and English) and spans seven domains (Chat, How-to, News, Literary, Reviews, Tweets, and Wikipedia). It includes two subtasks: MGT Detection, a binary classification task to determine whether a text was written by a human or a large language model (LLM), and MGT Attribution, a multiclass classification task in which participants must identify which of six LLMs generated a machine-generated text.