Anthropic ships a cheaper Sonnet that nearly matches Opus
Anthropic released Claude Sonnet 5.5, which it says runs more than 30% faster and costs up to 30% less per task than Sonnet 5, at the same $2-per-million-input, $10-per-million-output pricing. On benchmarks such as GDPval-AA and OSWorld 2.1, Sonnet 5.5 scores within a few points of the larger Opus 5.5 model.
NoteBanks and fintechs running Claude at scale for coding, document work and agents get most of a flagship model's capability at mid-tier pricing, which lowers the cost floor for the agentic pilots already spreading across back-office and customer-service work.