Anthropic’s Claude Sonnet 5 Closes In on Opus 4.8 at a Fraction of the Price
In brief Anthropic launched Claude Sonnet 5 on Tuesday at $2 per million input tokens and $10 per million output tokens through August 31, after which pricing reverts to $3/$15—still a fraction of Opus 4.8’s $5/$25 rate. On Anthropic’s own evaluations, Sonnet 5 is virtually tied Opus 4.8 on the GDPval-AA v2 knowledge-work benchmark. Sonnet…