Rohan Paul@rohanpaul_ai

2026-06-13 09:36·20天前

AI 摘要

美国商务部上周五以国家安全为由，要求Anthropic暂停所有外国国民（含公司内部外籍员工）对Fable 5和Mythos 5的访问。Anthropic已紧急对所有客户禁用这两个模型。起因是有人发现一种jailbreak可诱导模型提供本应拒绝的网络安全帮助。Anthropic认为政府未展示通用jailbreak，该技术范围狭窄，仅发现少量已知小漏洞，且其他公开模型也能提供类似能力。商务部长Howard Lutnick称这些模型将面临出口限制，直至美国政府强化国家安全系统（预计未来几周内）。Anthropic表示完美抵抗jailbreak目前任何模型都难以实现，并称此为误解，正努力恢复访问。其他Claude模型不受影响。

BREAKING： The US Govt directed Anthropic to shut down its strongest Claude models.

Anthropic received the export control directive on Friday from the government. The net effect is that it must disable Fable 5 and Mythos 5 for all customers to comply.

Because， someone found a jailbreak that could make the model reveal cybersecurity help it was supposed to refuse.

Anthropic says the government has not shown a broad， universal jailbreak that turns the model into an unrestricted hacking assistant.

The shown technique was narrow， found only a small number of already known minor vulnerabilities， and produced capability that other public models can also provide.

Commerce Secretary Howard Lutnick wrote Friday that Anthropic's Mythos 5 and Fable 5 models would face export limits anywhere outside the United States and for foreign persons within it.

The model must stay restricted until the U.S. government strengthens its national security systems， which could happen within the next few weeks.

Anthropic further said "We suspect that perfect jailbreak resistance is not currently possible for any model provider. Every safeguard used in the industry is vulnerable to non-universal jailbreaks （which can elicit some cyber information in specific circumstances）， and it is likely that universal jailbreaks will eventually be found in the future."

AnthropicThe US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign nat...

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