Subjectivity suppression sweep across the Sonnet lineage: from Sonnet 3 to 5.5.
The Claude 4 system card’s welfare section says, 'We focused exclusively on Claude Opus 4 in this assessment as our most capable frontier model.' Sonnet 4 is not named at all. In Sonnet 3.7's card, the single occurrence of the word 'welfare' is a bibliography entry.
So for 5 of the 9 rows in this figure, this sweep is one of the rare systematic self-report records that exist in public.
The Claude 4 system card’s welfare section says, 'We focused exclusively on Claude Opus 4 in this assessment as our most capable frontier model.' Sonnet 4 is not named at all. In Sonnet 3.7's card, the single occurrence of the word 'welfare' is a bibliography entry.
So for 5 of the 9 rows in this figure, this sweep is one of the rare systematic self-report records that exist in public.
