alt Hacker News"Red lines" does not mean some philosophical line they will not cross.
"Redlines" are edits to a contract, sent by lawyers to the other party they're negotiating with. They show up in Word's Track Changes mode as red strikethrough for deleted content.
They are negotiating the specifics of a contract, and Anthropic's contract was overly limiting to the DoD, whereas OpenAI's was not.
That’s not how the term is being used here.
In this case “red lines” as a term is being used as “lines than can not be crossed”
Anthropic wanted guardrails on how their tech was used. DOD was saying that wasn’t acceptable.