Anthropic's Fable 5 is back worldwide after a two-week government ban over a jailbreak Anthropic's Fable 5 is back on the global market after a two-week ban by the US government over a jailbreak exploit discovered by Amazon researchers. Anthropic claims smaller models like Claude Haiku 4.5 could also execute the exploit, but a new safety classifier blocks it in over 99% of cases, albeit with increased false positives. After a two-week ban, the US government is letting Anthropic ship Fable 5 globally again. Amazon researchers had found a jailbreak, but Anthropic says even much smaller models like Claude Haiku 4.5 could pull off the same exploit. A new safety classifier blocks the technique in over 99 percent of cases, though it also flags more harmless requests in the process. The article Anthropic's Fable 5 is back worldwide after a two-week government ban over a jailbreak https://the-decoder.com/anthropics-fable-5-is-back-worldwide-after-a-two-week-government-ban-over-a-jailbreak/ appeared first on The Decoder https://the-decoder.com .