Anthropic Disables Fable and Mythos Models to Follow US Order

WHO:

Hindustan Times - Anthropic co-founder Chris Olah, AI researcher Andrej Karpathy, and philosopher Amanda Askell were named as individuals born abroad, but their citizenship status is undetermined.

Techmeme - Luta Security CEO criticized the US government restrictions on Mythos, stating they follow a jailbreak report by Amazon researchers.

Ars Technica - Anthropic is the organization involved in the decision to disable the models.

Wired - The US government is involved, specifically citing national security authorities.

WHAT:

Hindustan Times - Anthropic has filed for an initial public offering (IPO) confidentially.

Hindustan Times - Anthropic stated that India accounts for 5.8% of its global users, following the US at 22%.

Hindustan Times - The US government’s directive to suspend access to the AI model was confirmed to have come from Commerce Secretary Howard Lutnick.

Techmeme - Amazon CEO Andy Jassy raised concerns with Trump officials about Mythos 5, which led to new export restrictions.

Techmeme - The directive implies that all non-Americans, including those based in the US, would need to prove their citizenship to use Anthropic models.

Techmeme - The Pentagon's contract with Anthropic was valued at $200 million.

Hindustan Times - Anthropic disabled Fable 5 and Mythos 5 models for all users, including Americans, due to the inability to separate foreign nationals from other users in real time.

Hindustan Times - The US government's directive to suspend access to the AI model was received by Anthropic at 5:21 PM ET.

Wired - Anthropic stated in a blog post, “The government believes it has become aware of a method of bypassing, or ‘jailbreaking’ Fable 5.”

Techmeme - The Trump administration is banning foreign governments, companies, and individuals from using Anthropic's models.

Techmeme - Anthropic is disabling the Fable 5 and Mythos 5 models for all customers.

Wired - The company stated that the government believes it has become aware of a method of bypassing, or "jailbreaking," Fable 5.

Techmeme - The US government issued an export control order to suspend all access to Fable 5.

WHERE:

Techmeme - The action affects all customers of Anthropic, implying a broad geographical impact.

WHY:

Hindustan Times - The US government expressed that the directive was necessary due to concerns over a potential "jailbreak" that could allow access to illegal information.

Hindustan Times - The US government expressed concerns that a "jailbreak" of Fable 5 could allow access to illegal information, including software vulnerabilities and weapons.

Techmeme - The Luta Security CEO called the restrictions a "complete overreaction."

Ars Technica - The Commerce Department expressed concerns that a Fable 5 "jailbreak" could pose a national security threat.

Techmeme - The US government cited national security concerns as the reason for the export control order.

HOW:

Hindustan Times - Anthropic claimed that the government provided only "verbal evidence of a potential narrow, non-universal jailbreak."

Hindustan Times - Anthropic stated that it had reviewed the jailbreak technique and found it only surfaced a few minor vulnerabilities that other models could also identify.

Techmeme - The disabling of the models is a direct response to the US government's export control directive.

(UPDATED June 13, 2026 20:31 UTC)

Anthropic has confidentially filed for an initial public offering, while also revealing that India makes up 5.8% of its global users, following the US at 22%. The US government, citing concerns over a potential "jailbreak" that could allow access to illegal information, confirmed that the directive to suspend access to Anthropic's AI model came from Commerce Secretary Howard Lutnick, and this directive requires all non-Americans, including those in the US, to prove their citizenship to use the models. Additionally, Amazon CEO Andy Jassy raised concerns with Trump officials about Mythos 5, which resulted in new export restrictions, and the Pentagon has a contract with Anthropic valued at $200 million.

(UPDATED June 13, 2026 19:19 UTC)

Anthropic has disabled its Fable 5 and Mythos 5 AI models for all users after receiving a directive from the US government, which raised concerns about potential "jailbreaks" that could expose illegal information, including software vulnerabilities and weapons. The company noted that while it reviewed the jailbreak technique, it only identified a few minor vulnerabilities that other models could also detect. Among those affected by the citizenship status uncertainty are Anthropic co-founder Chris Olah, AI researcher Andrej Karpathy, and philosopher Amanda Askell, all of whom were born abroad.

(UPDATED June 13, 2026 17:20 UTC)

Anthropic has announced that the government has reportedly discovered a way to bypass, or "jailbreak," its AI model known as Fable 5. This information was shared in a blog post by the company. The implications of this development are significant for the ongoing discussions around AI safety and regulation.

(UPDATED June 13, 2026 11:34 UTC)

Luta Security's CEO has criticized the US government's recent restrictions on Mythos, which follow a jailbreak report by Amazon researchers. In a related move, the Trump administration is banning foreign governments, companies, and individuals from using Anthropic's models. The CEO described these restrictions as a "complete overreaction."

(UPDATED June 13, 2026 04:20 UTC)

Anthropic has announced that it will disable its Fable 5 and Mythos 5 models for all customers, following a directive from the US government. The government has raised concerns about a potential method for bypassing the Fable 5 model, which they believe could pose a national security threat, leading to an export control order that suspends access to the model. This decision affects customers across a broad geographical area, highlighting the significant impact of national security considerations on technology access.