The Opus 4.7 system card says that the behaviors in that section were “from varying snapshots” (i.e. not necessarily the final snapshot). The Mythos Preview system card says:
The rate of such actions in earlier versions of Claude Mythos Preview was very low, and we have seen no clear such cases in the final Claude Mythos Preview
The Opus 4.7 system card says that the behaviors in that section were “from varying snapshots” (i.e. not necessarily the final snapshot). The Mythos Preview system card says: