Anthropic Co-Founder Confirms Briefing Trump Administration on Mythos Despite Active Lawsuit

Anthropic co-founder Jack Clark confirmed at the Semafor World Economy summit that the company briefed the Trump administration on Claude Mythos Preview’s capabilities, even while Anthropic has an active lawsuit against the U.S. government. Clark explained the decision reflects Anthropic’s view that responsible AI development requires engaging government stakeholders regardless of adversarial conditions.

The briefing illustrates how advanced AI models with dual-use security capabilities have become direct concerns for national security policy at the executive level. Both the DoD’s investment interest and now executive branch briefings signal that Mythos-class model capabilities are being assessed for national security implications in real time.

The disclosure adds context to Anthropic’s navigation of government relationships: simultaneously a commercial AI company, a national security asset of interest, and a government critic.