Andrew Curran Says Fable 5.1 and Mythos 5.1 Are Same Model

Andrew Curran posted that Claude Fable 5.1 and Claude Mythos 5.1 are the exact same model with different safeguards. The post links to Anthropic's system card page and includes an image showing the card title. No independent confirmation of the claim appears in the packet. The message comes from an independent AI commentator whose account focuses on curating AI news and analysis.