A reported Anthropic prompt change touches on when Claude curses
A reposted comment calls the system prompt change an example of how tricky language can be and starts quoting a line from Opus 4.1 about Claude cursing.
TLDR
A reposted comment points to an Anthropic system prompt change as an example of tricky language. It begins quoting an Opus 4.1 line — “Claude never curses unless the human a…” — but the excerpt stops before stating the exception.
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