AINews: Fable and Mythos Access Suspended Over Cybersecurity Risk★ 76
Latent SpaceyesterdayIncidentAnthropic’s Claude Fable 5 and Mythos 5 were abruptly suspended after a US export-control directive tied to a possible jailbreak and national cybersecurity risk. The roundup frames the event as a new “model sovereignty” warning for teams relying on closed frontier APIs. It also covers Kimi-K2.7-Code, MiniMax M3, DeepSWE replacing SWE-Bench Pro, agent-inference benchmarks, sandboxing, and Gemini-SQL2.
U.S. Government Orders Anthropic to Disable Claude Fable 5 and Mythos 5★ 78
TechCrunch AIyesterdayRegulationTechCrunch reports that the U.S. government ordered Anthropic to immediately disable Claude Fable 5 and Claude Mythos 5 worldwide, citing national security concerns. Anthropic says the order appears tied to a claimed narrow jailbreak of Fable 5, but argues the cited capability is already common in other public models. The move highlights a potential backlash against Anthropic’s safety-first messaging around especially powerful AI systems.
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.