From 2026, Hungarian legislation will allow access to health-related data stored in its National eHealth Infrastructure (EESZT) for AI development on a case-by-case basis. With this change, Hungary could capitalise on its investments into launching the EESZT platform in 2017 and standardising the health data collected by healthcare providers using the platform in the past years. In this article, we highlight the key differences compared to the EU’s European Health Data Space (EHDS) proposal and…