- The Trump administration is allowing Anthropic to reoffer one of its banned AI models, Mythos 5, to trusted companies and government partners, addressing industry concerns about federal regulation of artificial intelligence.
- Commerce Secretary Howard Lutnick stated in a letter that Anthropic can allow dozens of trusted partners to access Mythos 5, while Fable 5 remains restricted.
- The administration's decision is a response to security concerns raised by researchers who found ways to evade Fable’s safeguards.
- Anthropic has committed to work with the U.S. government on protocols and standards for the covered models.
- An Anthropic spokesman indicated the company is working to restore access to Mythos 5 for trusted partners as soon as possible.
- The U.S. government is allowing Anthropic to deploy its Mythos 5 model to a select group of customers and partners, according to a letter from Commerce Secretary Howard Lutnick to Anthropic that was seen by NBC News.
- In the letter, Lutnick wrote that the government was confident in the guardrails Anthropic had put in place to allow trusted users to access the powerful AI system.
- Mythos 5 access will be restored to around 100 organizations that include government agencies and private companies, according to people familiar with the matter.
- The restoration will help ensure the organizations can use the model for defensive cyber purposes.
- Lutnick invoked export control authorities to require Anthropic to shut off access to its two most capable systems, Mythos 5 and Fable 5, citing threats to national security.
- Lutnick’s Friday move that allows Anthropic to restore limited access to Mythos 5 comes hours after Anthropic competitor OpenAI its latest and most advanced series of models, the GPT-5.6 family, in phases per the federal government’s request.
- Before it was pulled back, Anthropic’s Mythos 5 had been available to a subset of trusted organizations involved in Anthropic’s Project Glasswing, including infrastructure providers like Cisco and banks like JPMorgan Chase.
- Export control regulations allow the government to prevent any foreign national from accessing sensitive technology.
The Trump administration's decision to allow Anthropic to reoffer its AI model, Mythos 5, to trusted partners marks a significant shift in federal regulation of artificial intelligence.123567
Commerce Secretary Howard Lutnick's letter to Anthropic Chief Compute Officer Tom Brown emphasized the government's confidence in the security measures implemented by Anthropic.11
The restoration of access will benefit approximately 100 organizations, including government agencies and private companies, enabling them to utilize the model for defensive cyber purposes.910
This move comes after concerns were raised about the potential misuse of AI technology, particularly following incidents where researchers evaded safeguards on Anthropic's other model, Fable 5.4

Lutnick invoked export control authorities to initially restrict access to Mythos 5 and Fable 5, citing national security threats.
Anthropic has committed to collaborating with the U.S. government on developing protocols and standards for the use of these models.
An Anthropic spokesman stated that the company is working diligently to restore access to Mythos 5 for its partners as soon as possible.
This decision reflects a broader trend of the government navigating the complexities of AI regulation while ensuring that trusted entities can leverage advanced technologies for security purposes.
“The Trump administration has permitted Anthropic to restore access to its AI model Mythos 5 for trusted partners. This decision follows security concerns regarding the model's previous restrictions.”
