Export restrictions on Anthropic's Mythos model were driven partly by fears a China-linked group had accessed the system, according to a Semafor report.
The White House reportedly suspects that a group linked to China gained access to Anthropic’s powerful Mythos artificial intelligence model, a concern that partly drove the government’s decision to impose export restrictions on the system, according to a report from Semafor cited by The Verge. [1]
If confirmed, the breach would carry significant national security implications. [1] One specific concern is that the Chinese government could attempt to replicate the model’s capabilities through a technique called distillation — a process in which a less advanced “student” AI is trained on outputs from a more capable model in order to reproduce its behavior. [1]
The White House has not confirmed the Semafor report. [1] A post on X by Trump advisor David Sacks did not mention China; instead, Sacks focused on reported vulnerabilities that would allow Fable and Mythos to be jailbroken — a claim Anthropic has denied. [1] An Anthropic spokesperson told Semafor that the government did not raise China during its discussions about export controls, and Anthropic did not reply to a separate request for comment from The Verge. [1]
The suspected China-linked access would not be the first known security incident involving Mythos. [1] Anthropic has previously stated that Mythos is too dangerous and powerful for public release, yet a Discord group reportedly had access to the model for approximately two weeks before Anthropic discovered the breach and revoked it. [1]
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