Rohan Paul· @rohanpaul_ai · X·· 2026-09-26AI 评分49
AI 导读
对 Claude Opus 5.5 与 Opus 5 高推理文本输出的分析显示，12 项写作指标中 10 项改善：破折号从每千词 15.2 降至 0.8（降 95%），分号降 73%，长实词占比从 41.7% 降至 38.6%，平均句长从 12.14 词缩短至 10.03 词（降 17%）。
正文 · 原文
Claude Opus 5.5 simply writes better.
Em dashes fall from 15.2 to 0.8 per 1,000 words, a 95% drop, while semicolons fall 73%.
But Opus 5.5 did not become terse. It actually became 6% longer, from 453 to 481 words per answer, while average sentence length fell 17%, from 12.14 to 10.03 words.
We analyzed how @claudeai’s Opus 5.5 writes compared with Opus 5 across high-reasoning Text Arena outputs. 10 of 12 writing measures moved in a better direction. Opus 5.5 should be easier to read: - Long content words fall from 41.7% to 38.6%, the lowest share of any Claude model we analyzed. - Sentences are 17% shorter on average, dropping from 12.14 to 10.03 words. The tradeoff is length. Answers get 6% wordier, rising from 453 to 481 words on average, making Opus 5.5 give the longest answers across the Opus family. It also sounds less recognizably AI on two familiar tells: - 95% fewer em dashes - 73% fewer semicolons But a new giveaway may be emerging. Hedges and caveats such as “perhaps” and “arguably” rise 97%, from 0.39 to 0.77 per 1,000 words, the highest rate of any Claude model we analyzed. What do you think: does Opus 5.5 read more naturally?在 X 查看被引用的帖子
来源：Rohan Paul · x.com