Anthropic, the AI safety company founded by former OpenAI researchers, just had its two newest models yanked offline globally. The Trump administration ordered that access to Fable 5 and Mythos 5 be restricted exclusively to US persons, citing national security concerns.
Anthropic complied, disabling the models worldwide on June 13, 2026. The company characterized the directive as the result of a misunderstanding and expressed hope for a quick resolution.
From cold shoulder to full freeze
This latest move is not an isolated incident. It is the sharpest escalation yet in a feud that has been building since February 2026, when President Trump ordered federal agencies to stop using Anthropic’s technology altogether.
The Pentagon followed up by designating Anthropic as a “supply chain risk.” In English: the Department of Defense essentially told every government contractor that doing business with Anthropic could jeopardize their own government relationships.