The German photographer Robert Kneschke found out in February that his photographs were being used to train AI through LAION-5B, which is a dataset of over 5.8 billion images owned by the non-profit Large-scale Artificial Intelligence Open Network (LAION) that has been used by companies like Stability AI.

Here is the photographer’s blog post (in German): https://www.alltageinesfotoproduzenten.de/2023/04/24/laion-e-v-macht-ernst-schadensersatzforderung-an-urheber-fuer-ki-trainingsdaten/