The White House could issue as soon as Thursday an executive order pushing for a voluntary government review of new artificial intelligence models before they’re released publicly, sources with knowledge of the situation told CNN.

The order will include a voluntary agreement in which AI companies would share advanced models with the government for a period of time ahead of launch, according to those sources. The timeframe has been a point of discussion between the industry and the government, with one version of the executive order laying out a 90-day pre-launch review period while some of the AI companies involved prefer a shorter period, such as 14 days, the sources said.

Some of the biggest AI companies, including OpenAI and Anthropic, have been engaging with the White House on the executive order, according to two sources with knowledge of the discussions.

Advanced AI models can supercharge cyberattacks, experts have said, and an early review could help the government protect against threats before they’re unleashed in the world.

One draft version of the executive order is split into two sections: one on cybersecurity and another called “covered frontier models,” according to another source briefed on the discussions. The latter portion defines which types of AI models would be eligible for the voluntary framework for early government review and the possible 90-day pre-public access for the government.