(FILES) This photograph shows screens displaying the logo of Grok, a generative artificial intelligence chatbot developed by US artificial intelligence company xAI, in Toulouse, southern France, on January 15, 2025. The UK's internet security regulator Ofcom announced on Monday, January 12, 2026, the opening of a "formal investigation" into the social network X "concerning sexually explicit images disseminated" by its artificial intelligence assistant Grok, according to a statement. (Photo by Lionel BONAVENTURE / AFP via Getty Images)