Trump administration's head of AI safety agency resigns after 3 months on job

Chris Fall resigned as director of the Center for AI Standards and Innovation (CAISI, a U.S. government agency that tests and researches commercial AI systems) after only three months, creating uncertainty in the Trump administration's AI leadership. The departure comes as the administration is implementing a new executive order that requires AI developers to voluntarily submit models to the government for safety evaluation before release, and as Chinese AI models are gaining market share against American competitors like OpenAI and Anthropic.