All modelsMODEL / FRONTIER COVERAGEClaude FableTYPEModelSIGNALS3FIRST SEENSep 1, 2026LAST SEENSep 22, 2026ALSO KNOWN ASFableRecent signalsAnthropic releases Opus 5.5 with lower prices and Fable-level performance Sep 22, 2026A detailed recap of the White House's 19-day standoff with Anthropic, where a jailbreak dispute led officials to bluntly order Dario Amodei to take Fable down (Politico) Sep 21, 2026Anthropic Says New Fable 5.1 AI Model Is Cheaper, Better at Coding Sep 1, 2026RELATEDAnthropicDario AmodeiFable 5.1Claude Opus 5.5White HouseALL MODELSLATEST SIGNAL