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

Chris Fall, the Trump administration's head of the Center for AI Standards and Innovation, resigned from his role, CNBC confirmed.

Arvind Raman, the director of National Institute of Standards and Technology, will serve as acting director of CAISI, according to a Commerce Department spokesperson.

CAISI aims to help the government facilitate "testing and collaborative research" around commercial AI systems.

Chris Fall, the head of the Center for AI Standards and Innovation, resigned from his role as director just three months after he was picked for the job by the Trump administration, CNBC confirmed on Monday.

CAISI, part of the U.S. Department of Commerce, aims to help the government facilitate "testing and collaborative research" around commercial artificial intelligence systems, according to its website.

Commerce Department spokesperson Kristen Eichamer told CNBC that Arvind Raman, the director of National Institute of Standards and Technology, will serve as acting director of CAISI and continue to oversee the agency. Eichamer didn't disclose why Fall, who was tapped to run the organization in April, resigned from his position.

Axios was first to report Fall's departure.

His exit adds to growing uncertainty surrounding who serves as the Trump administration's point person for AI policy and research. Venture capitalist David Sacks previously held the position of White House AI and crypto czar, but he stepped down from that role in March and has yet to be replaced.

It's a particularly sensitive moment for the White House as Chinese open-source models gain traction in the U.S. against big proprietary models from OpenAI and Anthropic. Late last week, Chinese startup Moonshot AI unveiled a new model, Kimi K3, that it says closes the gap with leading U.S. offerings and surpasses OpenAI and Anthropic's most capable systems on some benchmarks.

The Trump administration has taken a more hands-on approach to AI regulation since the president signed an AI executive order in June. The order asks AI developers to voluntarily provide models to the government to assess their capabilities ahead of a full release, and it gave federal agencies 60 days to develop an evaluation framework.

The process has been murky for companies that have tried to launch powerful new models in the interim.

OpenAI said in June that it agreed to limit the rollout of its GPT-5.6 model series to a group of "trusted partners" at the request of the U.S. government. Two weeks earlier, Anthropic had to disable access to its Fable 5 and Mythos 5 models to comply with an export control directive that was issued by the Commerce Department. Both companies later managed to release their models more broadly.