Amazon Research Reportedly Triggered White House Ban on Anthropic's Fable 5 and Mythos 5★ 76
The Verge AI10 hours agoRegulationThe Wall Street Journal reports that Amazon's cybersecurity research and conversations between CEO Andy Jassy and White House officials contributed to an export control directive targeting Anthropic's most advanced AI models. The directive led Anthropic to cut off access to Fable 5 and Mythos 5, its flagship large language models. The development marks a significant escalation in U.S. government scrutiny of frontier AI capabilities, with one major tech company's internal research reportedly shaping federal AI access policy.
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.