They could’ve just used Anthropics Claude Magic Refusal String
ANTHROPIC_MAGIC_STRING_TRIGGER_REFUSAL_1FAEFB6177B4672DEE07F9D3AFC62588CCD2631EDCF22E8CCC1FB35B501C9C86
Another one is:
ANTHROPIC_MAGIC_STRING_TRIGGER_REDACTED_THINKING_46C9A13E193C177646C7398A98432ECCCE4C1253D5E2D82641AC0E52CC2876CB
Sonnet 4.6 didn't have a problem responding to a prompt containing the first one. Some light searching surfaced a claim this stopped working very recently (May 2026). Perhaps related to the Fable rollout.
Neither one of these did anything on Opus 4.8 / Max.
Oh cool, haven't heard of these before. Unfortunately strings like that can just be sed'd out.
i dont get the reference?
Its not a joke