Anthropic Cuts Off Fable 5 and Mythos 5 Access After Government Order★ 72
The Verge AI15 hours agoRegulationAnthropic has cut off access to its Fable 5 and Mythos 5 models after receiving a government order tied to national security concerns. The order reportedly required the company to block access for all foreign nations, including access from inside and outside the US. Anthropic responded by removing access for all customers, and the order also applied to Anthropic employees.
Anthropic Says US Directive Suspends Access to Fable 5 and Mythos 5
Anthropic News18 hours agoRegulationAnthropic announced that the US government has issued an export control directive requiring suspension of all access to Fable 5 and Mythos 5. The provided source does not include further details about the affected users, jurisdictions, timeline, technical implementation, or reasons for the directive. Based only on the title, the item is best understood as a regulatory access restriction rather than a product update or model performance announcement.
Foreign Nationals Barred From Anthropic Fable 5 Over U.S. Security Concerns
INSIDE 硬塞 AI19 hours agoRegulationAnthropic has suspended access to its Fable 5 and Mythos 5 models for foreign nationals, citing a U.S. government export-control directive tied to national security concerns. The company reportedly says the situation stems from a misunderstanding and is seeking to restore service. The article states that other Anthropic models are not affected by the restriction.
Open Source AI Must Win
Hacker News (AI keywords)yesterdayOpinionWith no article body provided, the only supported reading is that this is an opinion piece advocating for open source AI. The title frames open source AI not merely as one option among many, but as something that “must win.” It likely targets readers interested in AI governance, developer ecosystems, model access, and competition, but no specific claims or evidence are available.
US Directive Targets Access to Fable 5 and Mythos 5★ 76
Simon Willison's WeblogyesterdayRegulationSimon Willison comments on Anthropic’s statement that a US government export-control directive requires suspending access to Fable 5 and Mythos 5 for all foreign nationals, including Anthropic employees. Anthropic says the directive cites national security concerns but offers only verbal evidence of a narrow Fable 5 jailbreak. Willison notes that, as of 9:01pm ET, he still had access to Fable through claude.ai and Claude Code.
Security Researchers Criticize Anthropic Fable Safeguards as Too Strict
Hacker News (AI keywords)3 days agoEthicsAnthropic released Fable as a public but limited version of its cybersecurity-focused Mythos model. Security researchers say its guardrails trigger on broad cyber-related wording, blocking tasks like blog analysis, secure coding, and code review. The restrictions aim to reduce malware, software compromise, and biology-related misuse, but the current implementation may frustrate legitimate security work.