A warning from Amazon led the White House to shut down Anthropic’s Mythos model
A warning from Amazon chief executive Andy Jassy, concerns about unauthorized Chinese access, and cybersecurity fears all reportedly led the Trump administration to cut off foreign access to Anthropic’s powerful new AI model, Fable 5. According to multiple media reports, Jassy first raised concerns about the model with senior administration officials on Thursday after Amazon researchers used a series of prompts to get the Mythos-class model to provide information about cyberattacks that was supposed to be restricted.It is unclear if Amazon was testing Fable for vulnerabilities in response to a White House request or if the company conducted the tests completely of its own accord. Politico quoted an unnamed source familiar with Amazon’s discussions as saying the government asked Amazon for feedback on the new Anthropic model. An Amazonspokesperson previously told Fortune: “As a leading cloud provider that serves a large number of private and public sector customers, it’s not uncommon for governments to seek our counsel on potential security risks. When they occur, we don’t share the details of these discussions.” Semafor also reported, citing unnamed sources, that the U.S. government suspected that a Chinese-linked group had already used the jailbreak Amazon discovered. But the publication said it was unclear how the government had arrived at this suspicion or what evidence they had to support it. And an Anthropic spokesperson told the publication that the White House did not raise Chinese access to Mythos in its conversations with the company, and that Anthropic prohibits access to its products from within China. What followed were several calls between Anthropic CEO Dario Amodei and senior administration officials, according to Politico, during which Amodei argued the security bypass found by Amazon was narrow rather than a full jailbreak of the model’s safeguards. A source familiar with Anthropic told Fortune the company was given 90 minutes to p