AbstractIn 2021, the Chilean Convention became the first constitution-making body with gender parity. However, the draft – which reflected many gender-related norms – was rejected by 61.89 per cent of voters in the exit plebiscite of 2022. In this article, we argue that although parity constitutionalism has promise and, in the Chilean case, was linked to gender-related outcomes in the constitutional text, parity’s promise may fail to materialize. We thus caution against a naïve view of parity constitutionalism as one of the key legacies of the 2020–22 Chilean constitution-making process.