Amazon research reportedly led to the White House s Anthropic Fable 5 ban

By Matthew Griffin Security and Privacy 27th May 2026

WHY THIS MATTERS IN BRIEF

If a corporate rival can trigger a national AI ban, frontier-model access becomes a lobbying battleground.

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After releasing its new Mythos Fable 5 model the other day Anthropic is meeting with White House officials this week in an attempt to overturn their ban on its most advanced Artificial Intelligence (AI) models, which was reportedly put in place after Amazon’s CEO spoke with members of the Trump administration.

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The US government told the AI company to suspend all use by foreign nationals of its Mythos 5 and Fable 5 models last week, citing national security concerns.

The ban includes foreign national Anthropic employees, according to the firm, meaning the Claude creator was forced to “abruptly disable” the models for all customers in order to ensure compliance.

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“The government believes it has become aware of a method of bypassing, or jailbreaking Fable 5,” Anthropic said in .

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“We disagree that the finding of a narrow potential jailbreak should be cause for recalling a commercial model deployed to hundreds of millions of people.”

The decision by the Trump administration to enforce the ban came after Amazon CEO Andy Jassy spoke with Treasury Secretary Scott Bessent and other US officials, according to the Wall Street Journal.

Amazon researchers had flagged the jailbreak issue noted by Anthropic in its statement, prompting Jassy to reportedly warn that it could be used to carry out catastrophic cyber attacks.

Tech entrepreneur David Sacks, who serves as an advisor to the Trump administration, said on Saturday that the jailbreak warning had come from a “highly credible trusted partner” of both Anthropic and the US government.

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“The Admin asked Dario [Amodei, Anthropic CEO] to fix the jailbreak or de-deploy the model. Dario refused,” Sacks wrote in a post to .

“In the past, Anthropic has always said that safety must be top priority and taken super seriously. In this case, Anthropic prioritised the continued offering of the consumer model over safety.”

A separate report from claimed that the White House’s decision to ban foreign use of Mythos was also driven by fears about Chinese access to the AI tool. Anthropic prohibits access to its AI models from within China, with a spokesperson for the firm claiming that the US government had not raised any concerns about Mythos being used by any specific adversaries.

Why did the White House restrict access to Anthropic’s most advanced models?
US officials cited national-security concerns over a potential Fable 5 jailbreak, reportedly after Amazon’s CEO lobbied Treasury and administration figures.

Matthew Griffin / About Author

Matthew Griffin is a multi-award winning Futurist and expert in Disruption and Innovation, Geopolitics, Leadership, and Technology, who NASA have described as a "walking encyclopaedia of the future" and a "futurist Polymath." 15-time best selling author of the "Codex of the Future" series, Matthew is the Founder and Futurist in Chief of the 311 Institute, a global Futures and Deep Futures advisory firm working with royal households, world leaders, G7, G20, and G77 governments, NGOs, and multi-national mid and mega cap firms to help them explore, shape, and lead the next 50 years of business and society.

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