Anthropic’s Claude Mythos is at the heart of Project Glasswing. The AI firm dubbed the model its most powerful yet, able to identify thousands of zero-day vulnerabilities over several weeks. In early April, Anthropic gave 50 initial partners, including the U.S. government, access to Claude Mythos Preview to scan their codebases for vulnerabilities and security flaws.

The expanded list of organizations with access to Mythos as of today covers power, water, healthcare, communications, and hardware — industries that weren’t “well-represented” in Anthropic’s initial cohort, the company said. Many who will now have access are companies or nonprofits that maintain codebases which other organizations and governments rely upon, Anthropic noted in a blog post.

“What each partner has in common is that a successful attack on their codebase could be catastrophic,” the company said. “For most partners, we estimate that a major attack could affect more than 100 million people, with important ramifications for both global and national security.”

The expanded group includes organizations in countries friendly to the U.S., including Australia, Canada, France, Germany, Italy, Switzerland, the Netherlands, Spain, Belgium, Sweden, India, Japan, New Zealand, and South Korea, according to Financial Times, citing a person familiar with the matter.