LONDON/LOS ANGELES—Anthropic’s new AI model, Claude Mythos Preview, has alarmed business leaders and policymakers around the world because of its extraordinary ability to find and exploit vulnerabilities in major operating systems and web browsers. Even the Trump administration, which has feuded with Anthropic in recent months over certain military uses of its models, now seems keen to work with the company to protect critical government infrastructure from cyberattacks.

© Project Syndicate