"Open Access" includes formats that shift the cost from the readers to the authors: https://en.wikipedia.org/wiki/Article_processing_charge https://en.wikipedia

"Open Access" includes formats that shift the cost from the readers to the authors: https://en.wikipedia.org/wiki/Article_processing_charge https://en.wikipedia.org/wiki/Article_processing_charge So the publisher still gets a significant amount of money, albeit often paid by the institution of the author.