The US government pulled one of the most capable AI models on the market offline, and left it there for over two weeks. Now, it is close to letting it come back.
The Trump administration is nearing an agreement to restore access to Anthropic’s Fable 5 model, according to a source close to the situation who spoke with Axios. The model has been inaccessible for 15 days following export controls imposed by the government over national security concerns.
How we got here
Fable 5 and a companion model called Mythos 5 launched around June 9, 2026. Within days, the situation changed dramatically.
Access was suspended on June 12, after researchers from Amazon, one of Anthropic’s major investors, flagged jailbreaking vulnerabilities in the new systems. The concern was not abstract. The government’s worry centered on potential exploits in high-stakes domains: cybersecurity, chemistry, and biology.
