US allows partial release of Anthropic's Mythos AI model to cybersecurity firms

The United States government has authorized Anthropic to grant partial access to its powerful artificial intelligence model, Mythos 5, to a group of trusted American cybersecurity firms. This move signals a shift after the Trump administration had previously blocked the model's release.

Anthropic announced Friday that the government notified them of the decision, stating, "Mythos 5, our strongest cybersecurity model, can be redeployed to a set of US organizations that operate and defend critical infrastructure." The company is actively working to restore access for these organizations and aims to make Mythos 5 and Fable 5 available for general use again.

The previous restriction on Mythos 5 and Fable 5, issued on June 12, stemmed from concerns that advanced AI systems could be exploited by military intelligence in countries like China and Russia. The Trump administration's stringent control measures had drawn accusations of government overreach.

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Mythos 5, our strongest cybersecurity model, can be redeployed to a set of US organizations that operate and defend critical infrastructure.

However, questions remain about the vetting process for organizations gaining access to these powerful AI models. OpenAI CEO Sam Altman expressed reservations about the government selecting customers, stating, "Extensive safety testing is not a bad idea. I just don't like the idea of the government picking the customers."

A source familiar with the new directive indicated that over 100 companies and institutions, including many Fortune 500 firms, will now have access to Mythos 5. This development follows Anthropic's earlier decision to cut access to its top-tier AI models after a US government order citing national security concerns.

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Extensive safety testing is not a bad idea. I just don't like the idea of the government picking the customers.