AI & Jobs Sonnet 5.5 Lands Two Points Off Opus on GDPval-AA at Half the Price
Anthropic released Claude Sonnet 5.5 on September 28. It scores 1,844 on GDPval-AA against 1,846 for Opus 5.5, at the same $2 and $10 per million tokens as Sonnet 5. It still trails the flagship on the hardest coding tests.