Inep published the official answer key for the first day of Enem 2025 on Thursday, breaking with past practice by releasing gabaritos in two stages. Candidates may count correct answers now, but final results will reflect Item Response Theory and will be available only in January. The second day is set for Sunday, 16 November in most of Brazil, covering Mathematics and Ciências da Natureza in a five-hour session, while Belém, Ananindeua and Marituba will test on 30 November and 7 December due to COP30. Enem 2025 debuted the testlet format in Linguagens, grouping multiple items under a single text-base, with Inep stating the items were pre-tested for pedagogical and psychometric quality. Preliminary MEC figures show more than 4.8 million registrants and about 73% attendance on the first day, with nationwide application reported without major incidents.