Changes to Elon Musk’s artificial intelligence (AI) chatbot Grok only serve to make creating deepfakes a “premium service” and are “insulting” to victims of misogyny and sexual violence, Downing Street has said.The Prime Minister’s spokesman said changes to limit usage of chatbot Grok’s image editing tool to paying users are “not a solution” but do prove that social media site X can move quickly when it wants to.