US Grants Access to Anthropic’s Mythos 5 Model for 100+ Organizations
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Quick answer
The US administration has authorized Anthropic to restore access to its cybersecure Mythos 5 model for over 100 organizations, including government agencies and firms handling critical infrastructure, following a…
The US administration has eased previously imposed restrictions on Anthropic’s AI model, Mythos 5. Access will now be granted to over 100 US government agencies and private companies, including foreign employees of these organizations. The model was previously blocked for all non-US users.
US Commerce Secretary Howard Latnick confirmed in a letter to Anthropic that the necessary security measures for deploying Mythos 5 have been implemented. The model is designed to protect critical infrastructure but was suspended after researchers discovered ways to bypass its built-in safeguards.
Anthropic stated on platform X* that it is working with the government to restore access to both Mythos 5 and Fable 5. The latter, released shortly before the block, was positioned as a more secure version, though its current status remains unspecified.
The partial lifting of restrictions does not extend to the broader market—access to Mythos 5 will be limited to trusted partners involved in cybersecurity and infrastructure protection.
Common questions
- Why did the US restrict access to Mythos 5?
- The model was withdrawn after vulnerabilities were found in its safeguards, allowing bypass of built-in restrictions. Authorities required a security review before reinstating access.
- Which organizations gained access to Mythos 5?
- Access has been granted to over 100 US government agencies and private companies, including those involved in protecting critical infrastructure.
- What is known about the Fable 5 model?
- The US administration’s decision does not mention Fable 5, an enhanced-security version of Mythos 5. Its status remains unclear.
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