Freie Universität Berlin, which has been offering funding for open access publications via the Publication Fund managed by the University Library since 2012, has published the costs for the open access journal articles funded in 2023 under a free license. These can be found at:
https://treemaps.openapc.net/apcdata/fu-berlin/#publisher/period=2023

If you have any questions about funding options for members of Freie Universität Berlin, please contact the University Library's Redaktion Dokumentenserver at:
edocs@ub.fu-berlin.de