Anthropic Gains Approval to Launch Claude Mythos 5 for Over 100 US Organizations

Anthropic has secured partial approval from the US government to release Claude Mythos 5. Last week, export control directives imposed on Anthropic forced the company to suspend access to Claude Fable 5 and Claude Mythos 5 for all customers. The exact reasons behind these directives remain unclear, but most reports indicate that concerns arose after Amazon CEO Andy Jassy informed US Treasury Secretary Janet Yellen about an alleged security breach that exposed Anthropic’s models to potential misuse. Additionally, reports suggested that the White House was worried about China gaining access to Claude Mythos.

According to 9TO5MAC, regardless of the reasons for the restrictions, Anthropic and the US government have spent the past two weeks negotiating a resolution. These discussions have yielded initial results, with the government partially lifting the restrictions and allowing Anthropic to deploy Claude Mythos 5 to over 100 US organizations, including major corporations and government agencies.

Anthropic's AI Model Deployment Details

Currently, there is no information on when or if Anthropic customers will regain access to Claude Fable 5. However, sources close to the negotiations indicated that plans are moving toward launching Fable as well, though the timeline remains uncertain.

Anthropic confirmed the news, stating that the company "continues to work with the government to expand access to Mythos 5 and make Fable 5 publicly available again." The company added, "Since June 12, we have been closely collaborating with the US government to restore access to Claude Mythos 5 and Fable 5. Today, the government notified us that Mythos 5, our most advanced cybersecurity model, can be redeployed to a group of US organizations that operate and defend critical entities."

This announcement comes just hours after OpenAI released limited access to its new GPT-5.6 models. As the company explained earlier today, these models are initially available only to a small group of trusted partners authorized in coordination with the US government, with plans for a broader rollout in the coming weeks.