Anthropic’s Mythos 5 model, the subject of weekslong negotiations with the Trump administration, is back in action. No word yet on Fable 5.

Anthropic announced that the US government has allowed it to release the Claude Mythos 5 AI model to select trusted organizations, including over 100 companies and Fortune 500 firms.

The move de-escalates a clash between the Trump administration and the company over its cutting-edge artificial intelligence systems.

The US lifted its export block on Claude Mythos 5, clearing access for 100 institutions while Fable 5 stays offline.

When Anthropic first disclosed Mythos in April, it sent an anxious shockwave through much of the cybersecurity sector. The new AI model was allegedly so ruthlessly effective at finding and exploiting security vulnerabilities in existing software that the company said it was holding off on a public release and would only grant access to a small group of early testers,

By Eduardo Baptista BEIJING, June 24 (Reuters) - Chinese cybersecurity firm 360 Security Technology has developed what it calls a domestic answer to Anthropic's Mythos, it said on Wednesday, casting the U.

The U.S. government wants to ensure that its latest, most advanced AI tools can't be used against it.

China’s 360 says its Yitian Tulong AI cybersecurity tools can rival Anthropic’s Mythos, but overseas access and verification remain unclear.