Anthropic has announced it will halt access to its Fable 5 and Mythos 5 AI models following a directive from the Trump administration that bans foreign nationals from using certain advanced AI tools. The company stated in a blog post that it would shut off access to all customers to comply with the order, which was issued on June 12, 2026.
The directive, part of broader national security measures, targets AI systems deemed critical to U.S. interests. Anthropic, a leading AI safety company, said it had no choice but to comply to avoid legal penalties. The models affected are among the most powerful in Anthropic's lineup, used for advanced reasoning and creative tasks.
Industry experts have raised concerns about the impact on global AI research and development. The move could disrupt projects relying on these models, particularly in academic and commercial settings outside the U.S. Anthropic has not provided a timeline for when access might be restored.
