Claude says Sonnet 5.5 matches or beats Sonnet 5 on most alignment measures
On Claude’s automated behavioral audit, Sonnet 5.5 improves on or matches Sonnet 5 on most measures of alignment and honesty.
Sonnet 5.5 is also the first Sonnet model with cyber safeguards and fallbacks like those on Claude’s most capable models. Claude says routine software development is unaffected.