Diamond open access | Wikipedia

Diamond open access refers to academic texts (such as monographs, edited collections, and journal articles) published/distributed/preserved with no fees to neither reader nor author. Alternative labels include platinum open access, non-commercial open access, cooperative open access or, more recently, open access commons. While these terms were first coined in the 2000s and the 2010s, they have been retroactively applied a variety of structure and forms of publishing from subsidized university publisher to volunteer-run cooperative that have existed in prior decades.

In 2021, it is estimated that between 17,000 and 29,000 scientific journals rely on a diamond open access model. They make up for 73%[1] of the journals registered in the Directory of Open Access Journals and 44% of the articles, as their mean output is smaller than commercial journals. The diamond model has been especially successful in Latin America-based journals (95% of OA journals[1]) following the emergence of large publicly supported platforms, such as SciELO and Redalyc.

In 2022, new national and international policies, such as the UNESCO recommendation on open science, and the Action Plan for Diamond Open Access promoted by the cOAlition S aim to support the development of non-commercial or community-driven forms open access publishing.