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Anthropic regains limited Mythos 5 access after two-week US government standoff

On June 26, the U.S. Commerce Department approved Anthropic’s request to resume selling Claude Mythos 5 to a select group of U.S. customers, allowing Anthropic to have its previous export-control order partially reversed. Two weeks prior to this order, the company was compelled t

Cryptopolitan2 phút đọc

Anthropic regains limited Mythos 5 access after two-week US government standoff

On June 26, the U.S. Commerce Department approved Anthropic’s request to resume selling Claude Mythos 5 to a select group of U.

S. customers, allowing Anthropic to have its previous export-control order partially reversed. Two weeks prior to this order, the company was compelled to remove its two most advanced AI products, Mythos 5 and Fable 5, from the market.

Meanwhile, Fable 5, the consumer version based on the same underlying architecture as Mythos 5, continues to be offline with no definite date for its redeployment. The partial reversal of the original export-control order has changed Anthropic’s competitive landscape at a crucial juncture in the company’s growth. Anthropic filed a confidential S-1 on June 1 with the SEC in preparation for a proposed IPO.

Each additional day that these flagship models are offline allows competitors to fill that void with their own offerings. For example, only one day after the original export ban was imposed, Chinese company Zhipu launched its open-weight GLM 5.2 model.

According to a CNBC report referenced by Cryptopolitan, Zhipu’s token traffic rose faster than any other Chinese model tracked in 2026. Why the US restricted Anthropic’s Mythos and Fable models On June 12, the U.S.

Commerce Department issued a directive to Anthropic to block all users outside the U.S. from accessing Anthropic’s models, including Anthropic’s own non-American employees.

Anthropic was unable to block foreign users quickly enough; therefore, both models were disabled for all users. The reasons given by the U.S.

government for the block include cybersecurity concerns regarding methods of breaking into or bypassing Fable 5’s security features to find vulnerabilities in the software. Anthropic publicly disagreed with the government’s position, calling the findings narrow. The company argued that other models available for purchase, such as GPT-5.

5, developed by OpenAI, could provide similar results in finding vulnerabilities without having to use jailb

Nguồn: Cryptopolitan

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