Malaysia and Indonesia have become the first countries to block Grok, the artificial intelligence chatbot developed by Elon Musk’s company xAI, as concerns grew among global authorities that it was being misused to generate sexually explicit and nonconsensual images.

The moves reflect growing scrutiny of generative AI tools that can produce realistic images, sound and text and concern that existing safeguards are failing to prevent their abuse. The Grok chatbot, which is accessed through Musk’s social media platform X, has been criticized for generating manipulated images, including depictions of women in bikinis or sexually explicit poses, as well as images involving children.