Anthropic told the Senate that Alibaba used about 25,000 fake accounts to run 28.8 million prompts against its Claude models between April 22 and June 5, calling it the largest known distillation attack on the company. At the same time, Anthropic faces a U.S. export control order suspending foreign access to its newest Claude models and is meeting with the Trump administration to resolve the dispute.

The White House slapped export controls on Anthropic’s Claude Fable 5 and Mythos 5 after a code-based jailbreak showed they could identify and fix security flaws. Regulators demand a “fix” that experts say can’t distinguish defensive from offensive coding skills. The post also surveys recent AI news—from new full-body medical scanners to benchmark upgrades and policy proposals.

Anthropic disabled Mythos 5 and Fable 5 after a US Commerce Department export-control order barred their use abroad. The administration asked for a pause amid reports of a narrow jailbreak letting Fable 5 analyze code for vulnerabilities. Anthropic says the issue produced only minor findings and that other models, like GPT-5.5, have similar capabilities.

Anthropic cut off access to its Mythos 5 and Fable 5 AI models to comply with new US export controls. Elon Musk became the world’s first trillionaire after SpaceX shares surged in its IPO. The update also covers a CRISPR method that targets “undruggable” cancers and the first working nuclear clocks from Chinese and European teams.

The US government issued an export control order to cut off all foreign-national access to Anthropic’s Fable 5 and Mythos 5, citing a potential jailbreak vulnerability. Anthropic says the reported exploit is narrow, already known across other models, and disagrees that it warrants a full suspension. The company plans to share more details within 24 hours and restore access if possible.