Claude Opus 5.5 reportedly uses em dashes about 95% less often
A post says Claude Opus 5.5 uses em dashes about 95% less often. Citing Arena analysis, it also says the model writes sentences that are 17% shorter.
TLDR
A post describes a shift toward simpler writing in Claude Opus 5.5, citing a roughly 95% drop in em-dash use and Arena analysis showing sentences 17% shorter. Separately, DiarioBitcoin says Claude’s design was estimated to support 130 pounds in a project involving five AI-designed, 3D-printed bridges. It says no best-performing bridge was reported, nor whether all were tested under the same conditions.
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2 Sources, first seen 1h ago