Switzerland: Federal Data Protection and Information Commissioner concluded investigation into X's use of personal data for training AI Grok

On 20 March 2025, the Federal Data Protection and Information Commissioner (FDPIC) concluded its preliminary investigation into X, formerly Twitter, concerning the utilisation of personal data from Platform X for training its artificial intelligence system, Grok. Following reports in early summer 2024 about the data processing practices, the investigation aimed to assess the transparency of these operations and the opt-out options for users. During this formal enquiry, X designated a local representative in Switzerland and disclosed details about the use of public posts for training machine learning and artificial intelligence models. The FDPIC noted that X introduced an opt-out mechanism on 16 July 2024, allowing users to exclude their public contributions from the training datasets. This feature aligns with the requirements of the Federal Act on Data Protection (FADP), offering control to users in Switzerland and the EU. The FDPIC concluded that with the establishment of the opt-out option, X is in compliance with relevant data protection regulations, ensuring users can manage their data usage preferences.