Claude Opus 4.5: Big gains in PotatoMonetBench from Opus 4.5 to Fable: "There are two controls. One is slider, in which one side is labelled Maximum Potato and the other is Formalware, there are four…
Anthropic released Claude Opus 4.5 on November 24, 2025, with benchmark scores including 74.5 in coding, 94.9 in math, and 14.2 on Humanity's Last Exam, as confirmed by official access and third-party sources like BenchL…